Vendor import of libc++ trunk r291274:vendor/libc++/libc++-trunk-r291274

https://llvm.org/svn/llvm-project/libcxx/trunk@291274

1 files changed, 194 insertions, 194 deletions

diff --git a/include/type_traits b/include/type_traits
index db9c1d11c983..d7ba251549dc 100644
--- a/include/type_traits
+++ b/include/type_traits
@@ -392,9 +392,9 @@ namespace std
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY pair;
-template <class _Tp> class _LIBCPP_TYPE_VIS_ONLY reference_wrapper;
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY hash;
+template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS pair;
+template <class _Tp> class _LIBCPP_TEMPLATE_VIS reference_wrapper;
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS hash;
 
 template <class>
 struct __void_t { typedef void type; };
@@ -403,22 +403,22 @@ template <class _Tp>
 struct __identity { typedef _Tp type; };
 
 template <class _Tp, bool>
-struct _LIBCPP_TYPE_VIS_ONLY __dependent_type : public _Tp {};
+struct _LIBCPP_TEMPLATE_VIS __dependent_type : public _Tp {};
 
 template <bool _Bp, class _If, class _Then>
-    struct _LIBCPP_TYPE_VIS_ONLY conditional {typedef _If type;};
+    struct _LIBCPP_TEMPLATE_VIS conditional {typedef _If type;};
 template <class _If, class _Then>
-    struct _LIBCPP_TYPE_VIS_ONLY conditional<false, _If, _Then> {typedef _Then type;};
+    struct _LIBCPP_TEMPLATE_VIS conditional<false, _If, _Then> {typedef _Then type;};
 
 #if _LIBCPP_STD_VER > 11
 template <bool _Bp, class _If, class _Then> using conditional_t = typename conditional<_Bp, _If, _Then>::type;
 #endif
 
-template <bool, class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if<true, _Tp> {typedef typename _Tp::type type;};
+template <bool, class _Tp> struct _LIBCPP_TEMPLATE_VIS __lazy_enable_if {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS __lazy_enable_if<true, _Tp> {typedef typename _Tp::type type;};
 
-template <bool, class _Tp = void> struct _LIBCPP_TYPE_VIS_ONLY enable_if {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY enable_if<true, _Tp> {typedef _Tp type;};
+template <bool, class _Tp = void> struct _LIBCPP_TEMPLATE_VIS enable_if {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS enable_if<true, _Tp> {typedef _Tp type;};
 
 #if _LIBCPP_STD_VER > 11
 template <bool _Bp, class _Tp = void> using enable_if_t = typename enable_if<_Bp, _Tp>::type;
@@ -498,7 +498,7 @@ struct __two {char __lx[2];};
 // helper class:
 
 template <class _Tp, _Tp __v>
-struct _LIBCPP_TYPE_VIS_ONLY integral_constant
+struct _LIBCPP_TEMPLATE_VIS integral_constant
 {
     static _LIBCPP_CONSTEXPR const _Tp      value = __v;
     typedef _Tp               value_type;
@@ -604,8 +604,8 @@ struct __not_ : conditional<_Tp::value, false_type, true_type>::type {};
 
 // is_const
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const            : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const<_Tp const> : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_const            : public false_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_const<_Tp const> : public true_type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v
@@ -614,8 +614,8 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v
 
 // is_volatile
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile               : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile<_Tp volatile> : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_volatile               : public false_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_volatile<_Tp volatile> : public true_type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v
@@ -624,23 +624,23 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v
 
 // remove_const
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const            {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const<const _Tp> {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_const            {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_const<const _Tp> {typedef _Tp type;};
 #if _LIBCPP_STD_VER > 11
 template <class _Tp> using remove_const_t = typename remove_const<_Tp>::type;
 #endif
 
 // remove_volatile
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile               {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile<volatile _Tp> {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_volatile               {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_volatile<volatile _Tp> {typedef _Tp type;};
 #if _LIBCPP_STD_VER > 11
 template <class _Tp> using remove_volatile_t = typename remove_volatile<_Tp>::type;
 #endif
 
 // remove_cv
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_cv
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_cv
 {typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;};
 #if _LIBCPP_STD_VER > 11
 template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type;
@@ -651,7 +651,7 @@ template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type;
 template <class _Tp> struct __libcpp_is_void       : public false_type {};
 template <>          struct __libcpp_is_void<void> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_void
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_void
     : public __libcpp_is_void<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -664,11 +664,11 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_void_v
 template <class _Tp> struct __is_nullptr_t_impl       : public false_type {};
 template <>          struct __is_nullptr_t_impl<nullptr_t> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __is_nullptr_t
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS __is_nullptr_t
     : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 11
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_null_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_null_pointer
     : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -702,7 +702,7 @@ template <>          struct __libcpp_is_integral<__int128_t>         : public tr
 template <>          struct __libcpp_is_integral<__uint128_t>        : public true_type {};
 #endif
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_integral
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_integral
     : public __libcpp_is_integral<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -717,7 +717,7 @@ template <>          struct __libcpp_is_floating_point<float>       : public tru
 template <>          struct __libcpp_is_floating_point<double>      : public true_type {};
 template <>          struct __libcpp_is_floating_point<long double> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_floating_point
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_floating_point
     : public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -727,11 +727,11 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_floating_point_v
 
 // is_array
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array
     : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[]>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[]>
     : public true_type {};
-template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[_Np]>
+template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[_Np]>
     : public true_type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -744,7 +744,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_array_v
 template <class _Tp> struct __libcpp_is_pointer       : public false_type {};
 template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pointer
     : public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -754,18 +754,18 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_pointer_v
 
 // is_reference
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference       : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference<_Tp&> : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_lvalue_reference       : public false_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_lvalue_reference<_Tp&> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference        : public false_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_rvalue_reference        : public false_type {};
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference<_Tp&&> : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_rvalue_reference<_Tp&&> : public true_type {};
 #endif
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference        : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&>  : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference        : public false_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference<_Tp&>  : public true_type {};
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&&> : public true_type {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference<_Tp&&> : public true_type {};
 #endif
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -782,13 +782,13 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_rvalue_reference_v
 
 #if __has_feature(is_union) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_union
     : public integral_constant<bool, __is_union(_Tp)> {};
 
 #else
 
 template <class _Tp> struct __libcpp_union : public false_type {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_union
     : public __libcpp_union<typename remove_cv<_Tp>::type> {};
 
 #endif
@@ -802,7 +802,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_union_v
 
 #if __has_feature(is_class) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_class
     : public integral_constant<bool, __is_class(_Tp)> {};
 
 #else
@@ -813,7 +813,7 @@ template <class _Tp> char  __test(int _Tp::*);
 template <class _Tp> __two __test(...);
 }
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_class
     : public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {};
 
 #endif
@@ -825,8 +825,8 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_class_v
 
 // is_same
 
-template <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS_ONLY is_same           : public false_type {};
-template <class _Tp>            struct _LIBCPP_TYPE_VIS_ONLY is_same<_Tp, _Tp> : public true_type {};
+template <class _Tp, class _Up> struct _LIBCPP_TEMPLATE_VIS is_same           : public false_type {};
+template <class _Tp>            struct _LIBCPP_TEMPLATE_VIS is_same<_Tp, _Tp> : public true_type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_same_v
@@ -855,7 +855,7 @@ struct __libcpp_is_function
     {};
 template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_function
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_function
     : public __libcpp_is_function<_Tp> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -882,7 +882,7 @@ template <class _Ret, class _Class>
 struct __libcpp_is_member_function_pointer<_Ret _Class::*>
     : public is_function<_Ret> {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_function_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_function_pointer
     : public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type>::type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -895,7 +895,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_function_pointer_v
 template <class _Tp>            struct __libcpp_is_member_pointer             : public false_type {};
 template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> : public true_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_pointer
     : public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -905,7 +905,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_pointer_v
 
 // is_member_object_pointer
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_object_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_object_pointer
     : public integral_constant<bool, is_member_pointer<_Tp>::value &&
                                     !is_member_function_pointer<_Tp>::value> {};
 
@@ -918,12 +918,12 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_object_pointer_v
 
 #if __has_feature(is_enum) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_enum
     : public integral_constant<bool, __is_enum(_Tp)> {};
 
 #else
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_enum
     : public integral_constant<bool, !is_void<_Tp>::value             &&
                                      !is_integral<_Tp>::value         &&
                                      !is_floating_point<_Tp>::value   &&
@@ -944,7 +944,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_enum_v
 
 // is_arithmetic
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_arithmetic
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_arithmetic
     : public integral_constant<bool, is_integral<_Tp>::value      ||
                                      is_floating_point<_Tp>::value> {};
 
@@ -955,7 +955,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_arithmetic_v
 
 // is_fundamental
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_fundamental
     : public integral_constant<bool, is_void<_Tp>::value        ||
                                      __is_nullptr_t<_Tp>::value ||
                                      is_arithmetic<_Tp>::value> {};
@@ -967,14 +967,14 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_fundamental_v
 
 // is_scalar
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_scalar
     : public integral_constant<bool, is_arithmetic<_Tp>::value     ||
                                      is_member_pointer<_Tp>::value ||
                                      is_pointer<_Tp>::value        ||
                                      __is_nullptr_t<_Tp>::value    ||
                                      is_enum<_Tp>::value           > {};
 
-template <> struct _LIBCPP_TYPE_VIS_ONLY is_scalar<nullptr_t> : public true_type {};
+template <> struct _LIBCPP_TEMPLATE_VIS is_scalar<nullptr_t> : public true_type {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v
@@ -983,7 +983,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v
 
 // is_object
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_object
     : public integral_constant<bool, is_scalar<_Tp>::value ||
                                      is_array<_Tp>::value  ||
                                      is_union<_Tp>::value  ||
@@ -996,7 +996,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_object_v
 
 // is_compound
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_compound
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_compound
     : public integral_constant<bool, !is_fundamental<_Tp>::value> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -1027,7 +1027,7 @@ struct __add_const             {typedef _Tp type;};
 template <class _Tp>
 struct __add_const<_Tp, false> {typedef const _Tp type;};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_const
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_const
     {typedef typename __add_const<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1044,7 +1044,7 @@ struct __add_volatile             {typedef _Tp type;};
 template <class _Tp>
 struct __add_volatile<_Tp, false> {typedef volatile _Tp type;};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_volatile
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_volatile
     {typedef typename __add_volatile<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1053,7 +1053,7 @@ template <class _Tp> using add_volatile_t = typename add_volatile<_Tp>::type;
 
 // add_cv
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_cv
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_cv
     {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1062,10 +1062,10 @@ template <class _Tp> using add_cv_t = typename add_cv<_Tp>::type;
 
 // remove_reference
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference        {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&>  {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference        {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference<_Tp&>  {typedef _Tp type;};
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&&> {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference<_Tp&&> {typedef _Tp type;};
 #endif
 
 #if _LIBCPP_STD_VER > 11
@@ -1077,7 +1077,7 @@ template <class _Tp> using remove_reference_t = typename remove_reference<_Tp>::
 template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_lvalue_reference_impl            { typedef _Tp  type; };
 template <class _Tp                                       > struct __add_lvalue_reference_impl<_Tp, true> { typedef _Tp& type; };
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_lvalue_reference
 {typedef typename __add_lvalue_reference_impl<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1089,7 +1089,7 @@ template <class _Tp> using add_lvalue_reference_t = typename add_lvalue_referenc
 template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_rvalue_reference_impl            { typedef _Tp   type; };
 template <class _Tp                                       > struct __add_rvalue_reference_impl<_Tp, true> { typedef _Tp&& type; };
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_rvalue_reference
 {typedef typename __add_rvalue_reference_impl<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1145,11 +1145,11 @@ struct __any
 
 // remove_pointer
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer                      {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp*>                {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const>          {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* volatile>       {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const volatile> {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer                      {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp*>                {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const>          {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* volatile>       {typedef _Tp type;};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const volatile> {typedef _Tp type;};
 
 #if _LIBCPP_STD_VER > 11
 template <class _Tp> using remove_pointer_t = typename remove_pointer<_Tp>::type;
@@ -1165,7 +1165,7 @@ struct __add_pointer_impl
 template <class _Tp> struct __add_pointer_impl<_Tp, false> 
     {typedef _Tp type;};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_pointer
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_pointer
     {typedef typename __add_pointer_impl<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1185,7 +1185,7 @@ struct __libcpp_is_signed : public __libcpp_is_signed_impl<_Tp> {};
 
 template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_signed : public __libcpp_is_signed<_Tp> {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_signed : public __libcpp_is_signed<_Tp> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_signed_v
@@ -1205,7 +1205,7 @@ struct __libcpp_is_unsigned : public __libcpp_is_unsigned_impl<_Tp> {};
 
 template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_unsigned : public __libcpp_is_unsigned<_Tp> {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_unsigned : public __libcpp_is_unsigned<_Tp> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v
@@ -1214,11 +1214,11 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v
 
 // rank
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS rank
     : public integral_constant<size_t, 0> {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[]>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS rank<_Tp[]>
     : public integral_constant<size_t, rank<_Tp>::value + 1> {};
-template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[_Np]>
+template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS rank<_Tp[_Np]>
     : public integral_constant<size_t, rank<_Tp>::value + 1> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -1228,15 +1228,15 @@ template <class _Tp> _LIBCPP_CONSTEXPR size_t rank_v
 
 // extent
 
-template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TYPE_VIS_ONLY extent
+template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TEMPLATE_VIS extent
     : public integral_constant<size_t, 0> {};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], 0>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[], 0>
     : public integral_constant<size_t, 0> {};
-template <class _Tp, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], _Ip>
+template <class _Tp, unsigned _Ip> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[], _Ip>
     : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
-template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], 0>
+template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[_Np], 0>
     : public integral_constant<size_t, _Np> {};
-template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], _Ip>
+template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[_Np], _Ip>
     : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -1246,11 +1246,11 @@ template <class _Tp, unsigned _Ip = 0> _LIBCPP_CONSTEXPR size_t extent_v
 
 // remove_extent
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent
     {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[]>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[]>
     {typedef _Tp type;};
-template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[_Np]>
+template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[_Np]>
     {typedef _Tp type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1259,11 +1259,11 @@ template <class _Tp> using remove_extent_t = typename remove_extent<_Tp>::type;
 
 // remove_all_extents
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_all_extents
     {typedef _Tp type;};
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[]>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_all_extents<_Tp[]>
     {typedef typename remove_all_extents<_Tp>::type type;};
-template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[_Np]>
+template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_all_extents<_Tp[_Np]>
     {typedef typename remove_all_extents<_Tp>::type type;};
 
 #if _LIBCPP_STD_VER > 11
@@ -1273,7 +1273,7 @@ template <class _Tp> using remove_all_extents_t = typename remove_all_extents<_T
 // decay
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY decay
+struct _LIBCPP_TEMPLATE_VIS decay
 {
 private:
     typedef typename remove_reference<_Tp>::type _Up;
@@ -1308,7 +1308,7 @@ struct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_i
 
 template <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_abstract : public __libcpp_abstract<_Tp> {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_abstract : public __libcpp_abstract<_Tp> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
 template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v
@@ -1318,15 +1318,15 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v
 // is_final
 
 #if defined(_LIBCPP_HAS_IS_FINAL)
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
 __libcpp_is_final : public integral_constant<bool, __is_final(_Tp)> {};
 #else
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
 __libcpp_is_final : public false_type {};
 #endif
 
 #if defined(_LIBCPP_HAS_IS_FINAL) && _LIBCPP_STD_VER > 11
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
 is_final : public integral_constant<bool, __is_final(_Tp)> {};
 #endif
 
@@ -1340,7 +1340,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_final_v
 #ifdef _LIBCPP_HAS_IS_BASE_OF
 
 template <class _Bp, class _Dp>
-struct _LIBCPP_TYPE_VIS_ONLY is_base_of
+struct _LIBCPP_TEMPLATE_VIS is_base_of
     : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {};
 
 #else  // _LIBCPP_HAS_IS_BASE_OF
@@ -1364,7 +1364,7 @@ template <class _Bp, class _Dp> __two __test(...);
 }
 
 template <class _Bp, class _Dp>
-struct _LIBCPP_TYPE_VIS_ONLY is_base_of
+struct _LIBCPP_TEMPLATE_VIS is_base_of
     : public integral_constant<bool, is_class<_Bp>::value &&
                                      sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {};
 
@@ -1379,7 +1379,7 @@ template <class _Bp, class _Dp> _LIBCPP_CONSTEXPR bool is_base_of_v
 
 #if __has_feature(is_convertible_to) && !defined(_LIBCPP_USE_IS_CONVERTIBLE_FALLBACK)
 
-template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible
+template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS is_convertible
     : public integral_constant<bool, __is_convertible_to(_T1, _T2) &&
                                      !is_abstract<_T2>::value> {};
 
@@ -1451,7 +1451,7 @@ template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public
 template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {};
 template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {};
 
-template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible
+template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS is_convertible
     : public __is_convertible<_T1, _T2>
 {
     static const size_t __complete_check1 = __is_convertible_check<_T1>::__v;
@@ -1470,7 +1470,7 @@ template <class _From, class _To> _LIBCPP_CONSTEXPR bool is_convertible_v
 #if __has_feature(is_empty) || (_GNUC_VER >= 407)
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_empty
+struct _LIBCPP_TEMPLATE_VIS is_empty
     : public integral_constant<bool, __is_empty(_Tp)> {};
 
 #else  // __has_feature(is_empty)
@@ -1492,7 +1492,7 @@ struct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>)
 
 template <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_empty : public __libcpp_empty<_Tp> {};
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_empty : public __libcpp_empty<_Tp> {};
 
 #endif  // __has_feature(is_empty)
 
@@ -1506,7 +1506,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_empty_v
 #if __has_feature(is_polymorphic) || defined(_LIBCPP_MSVC)
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic
+struct _LIBCPP_TEMPLATE_VIS is_polymorphic
     : public integral_constant<bool, __is_polymorphic(_Tp)> {};
 
 #else
@@ -1516,7 +1516,7 @@ template<typename _Tp> char &__is_polymorphic_impl(
                        int>::type);
 template<typename _Tp> __two &__is_polymorphic_impl(...);
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_polymorphic
     : public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {};
 
 #endif // __has_feature(is_polymorphic)
@@ -1530,12 +1530,12 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_polymorphic_v
 
 #if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_virtual_destructor
     : public integral_constant<bool, __has_virtual_destructor(_Tp)> {};
 
 #else
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_virtual_destructor
     : public false_type {};
 
 #endif
@@ -1547,7 +1547,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool has_virtual_destructor_v
 
 // alignment_of
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY alignment_of
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS alignment_of
     : public integral_constant<size_t, __alignof__(_Tp)> {};
 
 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
@@ -1640,7 +1640,7 @@ struct __find_max_align<__type_list<_Hp, _Tp>, _Len>
     : public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {};
 
 template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value>
-struct _LIBCPP_TYPE_VIS_ONLY aligned_storage
+struct _LIBCPP_TEMPLATE_VIS aligned_storage
 {
     typedef typename __find_pod<__all_types, _Align>::type _Aligner;
     static_assert(!is_void<_Aligner>::value, "");
@@ -1658,7 +1658,7 @@ template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::valu
 
 #define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \
 template <size_t _Len>\
-struct _LIBCPP_TYPE_VIS_ONLY aligned_storage<_Len, n>\
+struct _LIBCPP_TEMPLATE_VIS aligned_storage<_Len, n>\
 {\
     struct _ALIGNAS(n) type\
     {\
@@ -1913,7 +1913,7 @@ template <> struct __make_signed<__uint128_t,        true> {typedef __int128_t t
 #endif
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY make_signed
+struct _LIBCPP_TEMPLATE_VIS make_signed
 {
     typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type;
 };
@@ -1946,7 +1946,7 @@ template <> struct __make_unsigned<__uint128_t,        true> {typedef __uint128_
 #endif
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY make_unsigned
+struct _LIBCPP_TEMPLATE_VIS make_unsigned
 {
     typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type;
 };
@@ -1958,21 +1958,21 @@ template <class _Tp> using make_unsigned_t = typename make_unsigned<_Tp>::type;
 #ifdef _LIBCPP_HAS_NO_VARIADICS
 
 template <class _Tp, class _Up = void, class _Vp = void>
-struct _LIBCPP_TYPE_VIS_ONLY common_type
+struct _LIBCPP_TEMPLATE_VIS common_type
 {
 public:
     typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp>::type type;
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, void, void>
+struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, void, void>
 {
 public:
     typedef typename decay<_Tp>::type type;
 };
 
 template <class _Tp, class _Up>
-struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, void>
+struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up, void>
 {
     typedef typename decay<decltype(
         true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>()
@@ -1984,12 +1984,12 @@ struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, void>
 // bullet 1 - sizeof...(Tp) == 0
 
 template <class ..._Tp>
-struct _LIBCPP_TYPE_VIS_ONLY common_type {};
+struct _LIBCPP_TEMPLATE_VIS common_type {};
 
 // bullet 2 - sizeof...(Tp) == 1
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp>
+struct _LIBCPP_TEMPLATE_VIS common_type<_Tp>
 {
     typedef typename decay<_Tp>::type type;
 };
@@ -2021,7 +2021,7 @@ using __common_type2 =
   >::type;
 
 template <class _Tp, class _Up>
-struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up>
+struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up>
     : __common_type2<_Tp, _Up> {};
 
 // bullet 4 - sizeof...(Tp) > 2
@@ -2049,7 +2049,7 @@ struct __common_type_impl<__common_types<_Tp, _Up, _Vp...>,
 };
 
 template <class _Tp, class _Up, class ..._Vp>
-struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, _Vp...>
+struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up, _Vp...>
     : __common_type_impl<__common_types<_Tp, _Up, _Vp...> > {};
 
 #if _LIBCPP_STD_VER > 11
@@ -2091,7 +2091,7 @@ template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_assignable_v
 
 // is_copy_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_copy_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_copy_assignable
     : public is_assignable<typename add_lvalue_reference<_Tp>::type,
                   typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
 
@@ -2102,7 +2102,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_assignable_v
 
 // is_move_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_move_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_move_assignable
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     : public is_assignable<typename add_lvalue_reference<_Tp>::type,
                            typename add_rvalue_reference<_Tp>::type> {};
@@ -2869,7 +2869,7 @@ class __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true>  // _Fn must be member p
 // result_of
 
 template <class _Fn>
-class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn()>
+class _LIBCPP_TEMPLATE_VIS result_of<_Fn()>
     : public __result_of<_Fn(),
                          is_class<typename remove_reference<_Fn>::type>::value ||
                          is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
@@ -2879,7 +2879,7 @@ class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn()>
 };
 
 template <class _Fn, class _A0>
-class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0)>
+class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0)>
     : public __result_of<_Fn(_A0),
                          is_class<typename remove_reference<_Fn>::type>::value ||
                          is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
@@ -2889,7 +2889,7 @@ class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0)>
 };
 
 template <class _Fn, class _A0, class _A1>
-class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1)>
+class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0, _A1)>
     : public __result_of<_Fn(_A0, _A1),
                          is_class<typename remove_reference<_Fn>::type>::value ||
                          is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
@@ -2899,7 +2899,7 @@ class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1)>
 };
 
 template <class _Fn, class _A0, class _A1, class _A2>
-class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1, _A2)>
+class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0, _A1, _A2)>
     : public __result_of<_Fn(_A0, _A1, _A2),
                          is_class<typename remove_reference<_Fn>::type>::value ||
                          is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
@@ -3035,12 +3035,12 @@ struct __libcpp_is_constructible<_Tp&&, _A0>
 
 #if __has_feature(is_constructible)
 template <class _Tp, class ..._Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_constructible
+struct _LIBCPP_TEMPLATE_VIS is_constructible
     : public integral_constant<bool, __is_constructible(_Tp, _Args...)>
     {};
 #elif !defined(_LIBCPP_CXX03_LANG)
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_constructible
+struct _LIBCPP_TEMPLATE_VIS is_constructible
     : public __libcpp_is_constructible<_Tp, _Args...>::type {};
 #else
 // template <class T> struct is_constructible0;
@@ -3154,7 +3154,7 @@ struct __is_constructible2_void_check<true, _Tp, _A0, _A1>
 
 template <class _Tp, class _A0 = __is_construct::__nat,
                      class _A1 = __is_construct::__nat>
-struct _LIBCPP_TYPE_VIS_ONLY is_constructible
+struct _LIBCPP_TEMPLATE_VIS is_constructible
     : public __is_constructible2_void_check<is_void<_Tp>::value
                                         || is_abstract<_Tp>::value
                                         || is_function<_Tp>::value
@@ -3164,7 +3164,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_constructible
     {};
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat>
+struct _LIBCPP_TEMPLATE_VIS is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat>
     : public __is_constructible0_void_check<is_void<_Tp>::value
                                         || is_abstract<_Tp>::value
                                         || is_function<_Tp>::value,
@@ -3172,7 +3172,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, __is_construct::__nat, __is_c
     {};
 
 template <class _Tp, class _A0>
-struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, _A0, __is_construct::__nat>
+struct _LIBCPP_TEMPLATE_VIS is_constructible<_Tp, _A0, __is_construct::__nat>
     : public __is_constructible1_void_check<is_void<_Tp>::value
                                         || is_abstract<_Tp>::value
                                         || is_function<_Tp>::value
@@ -3226,7 +3226,7 @@ template <class _Tp, class ..._Args> _LIBCPP_CONSTEXPR bool is_constructible_v
 // is_default_constructible
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_default_constructible
+struct _LIBCPP_TEMPLATE_VIS is_default_constructible
     : public is_constructible<_Tp>
     {};
 
@@ -3238,7 +3238,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_default_constructible_v
 // is_copy_constructible
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_copy_constructible
+struct _LIBCPP_TEMPLATE_VIS is_copy_constructible
     : public is_constructible<_Tp, 
                   typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
 
@@ -3250,7 +3250,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_constructible_v
 // is_move_constructible
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_move_constructible
+struct _LIBCPP_TEMPLATE_VIS is_move_constructible
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     : public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
 #else
@@ -3270,7 +3270,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_constructible_v
 #if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501
 
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
     : integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)>
 {
 };
@@ -3278,13 +3278,13 @@ struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
 #else  // !__has_feature(is_trivially_constructible)
 
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
     : false_type
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp>
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp>
 #if __has_feature(has_trivial_constructor) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_trivial_constructor(_Tp)>
 #else
@@ -3295,22 +3295,22 @@ struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp>
 
 template <class _Tp>
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&&>
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&&>
 #else
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp>
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp>
 #endif
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
@@ -3321,7 +3321,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&>
 
 template <class _Tp, class _A0 = __is_construct::__nat,
                      class _A1 = __is_construct::__nat>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
     : false_type
 {
 };
@@ -3329,28 +3329,28 @@ struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
 #if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, __is_construct::__nat,
                                                        __is_construct::__nat>
     : integral_constant<bool, __is_trivially_constructible(_Tp)>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp,
                                                        __is_construct::__nat>
     : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&,
                                                        __is_construct::__nat>
     : integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&,
                                                        __is_construct::__nat>
     : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)>
 {
@@ -3359,28 +3359,28 @@ struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&,
 #else  // !__has_feature(is_trivially_constructible)
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, __is_construct::__nat,
                                                        __is_construct::__nat>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp,
                                                        __is_construct::__nat>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&,
                                                        __is_construct::__nat>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&,
                                                        __is_construct::__nat>
     : integral_constant<bool, is_scalar<_Tp>::value>
 {
@@ -3397,7 +3397,7 @@ template <class _Tp, class... _Args> _LIBCPP_CONSTEXPR bool is_trivially_constru
 
 // is_trivially_default_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_default_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_default_constructible
     : public is_trivially_constructible<_Tp>
     {};
 
@@ -3408,7 +3408,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_default_constructible_v
 
 // is_trivially_copy_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copy_constructible
     : public is_trivially_constructible<_Tp, typename add_lvalue_reference<const _Tp>::type>
     {};
 
@@ -3419,7 +3419,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_constructible_v
 
 // is_trivially_move_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_move_constructible
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     : public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
 #else
@@ -3477,7 +3477,7 @@ template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_trivially_assignable_
 
 // is_trivially_copy_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copy_assignable
     : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
                   typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
 
@@ -3488,7 +3488,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_assignable_v
 
 // is_trivially_move_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_move_assignable
     : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
                                      typename add_rvalue_reference<_Tp>::type>
@@ -3506,7 +3506,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_assignable_v
 
 #if __has_feature(has_trivial_destructor) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible
     : public integral_constant<bool, is_destructible<_Tp>::value && __has_trivial_destructor(_Tp)> {};
 
 #else
@@ -3515,10 +3515,10 @@ template <class _Tp> struct __libcpp_trivial_destructor
     : public integral_constant<bool, is_scalar<_Tp>::value ||
                                      is_reference<_Tp>::value> {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible
     : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible<_Tp[]>
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible<_Tp[]>
     : public false_type {};
 
 #endif
@@ -3532,7 +3532,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_destructible_v
 
 #if 0
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
     : public integral_constant<bool, __is_nothrow_constructible(_Tp(_Args...))>
 {
 };
@@ -3567,13 +3567,13 @@ struct __libcpp_is_nothrow_constructible</*is constructible*/false, _IsReference
 };
 
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
     : __libcpp_is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, is_reference<_Tp>::value, _Tp, _Args...>
 {
 };
 
 template <class _Tp, size_t _Ns>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp[_Ns]>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp[_Ns]>
     : __libcpp_is_nothrow_constructible<is_constructible<_Tp>::value, is_reference<_Tp>::value, _Tp>
 {
 };
@@ -3581,13 +3581,13 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp[_Ns]>
 #else  // __has_feature(cxx_noexcept)
 
 template <class _Tp, class... _Args>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
     : false_type
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp>
 #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_constructor(_Tp)>
 #else
@@ -3598,9 +3598,9 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp>
 
 template <class _Tp>
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&&>
 #else
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp>
 #endif
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
@@ -3611,7 +3611,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp>
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, const _Tp&>
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
 #else
@@ -3621,7 +3621,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&>
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&>
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
 #else
@@ -3636,13 +3636,13 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&>
 
 template <class _Tp, class _A0 = __is_construct::__nat,
                      class _A1 = __is_construct::__nat>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
     : false_type
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, __is_construct::__nat,
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, __is_construct::__nat,
                                                        __is_construct::__nat>
 #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_constructor(_Tp)>
@@ -3653,7 +3653,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, __is_construct::__nat
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp,
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp,
                                                        __is_construct::__nat>
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
@@ -3664,7 +3664,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp,
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, const _Tp&,
                                                        __is_construct::__nat>
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
@@ -3675,7 +3675,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&,
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&,
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&,
                                                        __is_construct::__nat>
 #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_copy(_Tp)>
@@ -3695,7 +3695,7 @@ template <class _Tp, class ..._Args> _LIBCPP_CONSTEXPR bool is_nothrow_construct
 
 // is_nothrow_default_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_default_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_default_constructible
     : public is_nothrow_constructible<_Tp>
     {};
 
@@ -3706,7 +3706,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_default_constructible_v
 
 // is_nothrow_copy_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_constructible
     : public is_nothrow_constructible<_Tp,
                   typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
 
@@ -3717,7 +3717,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_constructible_v
 
 // is_nothrow_move_constructible
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_constructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_constructible
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     : public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
 #else
@@ -3749,7 +3749,7 @@ struct __libcpp_is_nothrow_assignable<true, _Tp, _Arg>
 };
 
 template <class _Tp, class _Arg>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable
     : public __libcpp_is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg>
 {
 };
@@ -3757,11 +3757,11 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable
 #else  // __has_feature(cxx_noexcept)
 
 template <class _Tp, class _Arg>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable
     : public false_type {};
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, _Tp>
 #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_assign(_Tp)> {};
 #else
@@ -3769,7 +3769,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp>
 #endif
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, _Tp&>
 #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_assign(_Tp)> {};
 #else
@@ -3777,7 +3777,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp&>
 #endif
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, const _Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, const _Tp&>
 #if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
     : integral_constant<bool, __has_nothrow_assign(_Tp)> {};
 #else
@@ -3805,7 +3805,7 @@ template <class _Tp, class _Arg> _LIBCPP_CONSTEXPR bool is_nothrow_assignable_v
 
 // is_nothrow_copy_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_assignable
     : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
                   typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
 
@@ -3816,7 +3816,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_assignable_v
 
 // is_nothrow_move_assignable
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_assignable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_assignable
     : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
                                      typename add_rvalue_reference<_Tp>::type>
@@ -3849,19 +3849,19 @@ struct __libcpp_is_nothrow_destructible<true, _Tp>
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible
     : public __libcpp_is_nothrow_destructible<is_destructible<_Tp>::value, _Tp>
 {
 };
 
 template <class _Tp, size_t _Ns>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp[_Ns]>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[_Ns]>
     : public is_nothrow_destructible<_Tp>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&>
     : public true_type
 {
 };
@@ -3869,7 +3869,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&>
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&&>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&&>
     : public true_type
 {
 };
@@ -3882,11 +3882,11 @@ template <class _Tp> struct __libcpp_nothrow_destructor
     : public integral_constant<bool, is_scalar<_Tp>::value ||
                                      is_reference<_Tp>::value> {};
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible
     : public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {};
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp[]>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[]>
     : public false_type {};
 
 #endif
@@ -3900,12 +3900,12 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_destructible_v
 
 #if __has_feature(is_pod) || (_GNUC_VER >= 403)
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pod
     : public integral_constant<bool, __is_pod(_Tp)> {};
 
 #else
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pod
     : public integral_constant<bool, is_trivially_default_constructible<_Tp>::value   &&
                                      is_trivially_copy_constructible<_Tp>::value      &&
                                      is_trivially_copy_assignable<_Tp>::value    &&
@@ -3920,7 +3920,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_pod_v
 
 // is_literal_type;
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_literal_type
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_literal_type
 #ifdef _LIBCPP_IS_LITERAL
     : public integral_constant<bool, _LIBCPP_IS_LITERAL(_Tp)>
 #else
@@ -3936,7 +3936,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_literal_type_v
 
 // is_standard_layout;
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_standard_layout
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_standard_layout
 #if __has_feature(is_standard_layout) || (_GNUC_VER >= 407)
     : public integral_constant<bool, __is_standard_layout(_Tp)>
 #else
@@ -3951,7 +3951,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_standard_layout_v
 
 // is_trivially_copyable;
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copyable
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copyable
 #if __has_feature(is_trivially_copyable)
     : public integral_constant<bool, __is_trivially_copyable(_Tp)>
 #elif _GNUC_VER >= 501
@@ -3968,7 +3968,7 @@ template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copyable_v
 
 // is_trivial;
 
-template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivial
+template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivial
 #if __has_feature(is_trivial) || _GNUC_VER >= 407
     : public integral_constant<bool, __is_trivial(_Tp)>
 #else
@@ -4375,7 +4375,7 @@ struct __invoke_of
 // result_of
 
 template <class _Fp, class ..._Args>
-class _LIBCPP_TYPE_VIS_ONLY result_of<_Fp(_Args...)>
+class _LIBCPP_TEMPLATE_VIS result_of<_Fp(_Args...)>
     : public __invoke_of<_Fp, _Args...>
 {
 };
@@ -4389,10 +4389,10 @@ template <class _Tp> using result_of_t = typename result_of<_Tp>::type;
 // is_callable
 
 template <class _Fn, class _Ret = void>
-struct _LIBCPP_TYPE_VIS_ONLY is_callable;
+struct _LIBCPP_TEMPLATE_VIS is_callable;
 
 template <class _Fn, class ..._Args, class _Ret>
-struct _LIBCPP_TYPE_VIS_ONLY is_callable<_Fn(_Args...), _Ret>
+struct _LIBCPP_TEMPLATE_VIS is_callable<_Fn(_Args...), _Ret>
     : integral_constant<bool, __invokable_r<_Ret, _Fn, _Args...>::value> {};
 
 template <class _Fn, class _Ret = void>
@@ -4401,10 +4401,10 @@ constexpr bool is_callable_v = is_callable<_Fn, _Ret>::value;
 // is_nothrow_callable
 
 template <class _Fn, class _Ret = void>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_callable;
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_callable;
 
 template <class _Fn, class ..._Args, class _Ret>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_callable<_Fn(_Args...), _Ret>
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_callable<_Fn(_Args...), _Ret>
     : integral_constant<bool, __nothrow_invokable_r<_Ret, _Fn, _Args...>::value>
 {};
 
@@ -4513,13 +4513,13 @@ struct __is_nothrow_swappable
 #if _LIBCPP_STD_VER > 14
 
 template <class _Tp, class _Up>
-struct _LIBCPP_TYPE_VIS_ONLY is_swappable_with
+struct _LIBCPP_TEMPLATE_VIS is_swappable_with
     : public integral_constant<bool, __detail::__swappable_with<_Tp, _Up>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_swappable
+struct _LIBCPP_TEMPLATE_VIS is_swappable
     : public conditional<
         __is_referenceable<_Tp>::value,
         is_swappable_with<
@@ -4531,13 +4531,13 @@ struct _LIBCPP_TYPE_VIS_ONLY is_swappable
 };
 
 template <class _Tp, class _Up>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_swappable_with
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_swappable_with
     : public integral_constant<bool, __detail::__nothrow_swappable_with<_Tp, _Up>::value>
 {
 };
 
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_swappable
+struct _LIBCPP_TEMPLATE_VIS is_nothrow_swappable
     : public conditional<
         __is_referenceable<_Tp>::value,
         is_nothrow_swappable_with<