Implement the ABI plan from microsoftGH-1814 (microsoft#1929)

* Implement the ABI plan from microsoftGH-1814

* Condition `<format>` and "`<chronat>`" on `__cpp_lib_format` instead of `__cpp_lib_concepts`.
* Condition the `view` concept - and everything that relies on it, including all of `<ranges>` - on `__cpp_lib_ranges` in addition to `__cpp_lib_concepts`.
* Add C++23 STL and testing infrastructure:
  * Define `_HAS_CXX23` in `<yvals_core.h>`. We'll eventually want this to move into `<vcruntime.h>` so all `_HAS_CXXMEOW` definitions are nicely localized.
  * `_HAS_CXX23` is defined to `1` iff `_HAS_CXX20 != 0` and `_MSVC_LANG` (if defined) or `__cplusplus` (otherwise) is greater than C++20's value of `202002L`. For Clang coverage, we'll have to manually define `_HAS_CXX23` to `1` until Clang updates their `__cplusplus` value for `/std:c++latest`.
  * Rename `meow_concepts_woof.lst` to `meow_concepts_latest_woof.lst`.
  * Update test matrices: Copy all `meow_latest_woof.lst` matrices to `meow_20_woof.lst`. Add `/std:c++20` coverage to the latter (still spelled `/std:c++latest` for Clang which doesn't grok `/std:c++20`) by duplicating the C++17 configs. `/std:c++latest` becomes C++23 mode (with additions of `/D_HAS_CXX23` for Clang).
  * Replace uses of `meow_latest_woof.lst` with `meow_20_woof.lst`, except for a few tests that are only intended to have `latest` coverage, notably `include_each_header_alone` and all of `libcxx`.
* Only define `__cpp_lib_format` and `__cpp_lib_ranges` in C++23 mode. Update the feature-test macro test accordingly.

stl/inc/chrono

@@ -32,9 +32,12 @@
 
 #ifdef __cpp_lib_concepts
 #include <concepts>
+#endif // defined(__cpp_lib_concepts)
+
+#ifdef __cpp_lib_format
 #include <format>
 #include <iomanip>
-#endif // defined(__cpp_lib_concepts)
+#endif // defined(__cpp_lib_format)
 #endif // _HAS_CXX20
 
 #pragma pack(push, _CRT_PACKING)
@@ -2274,7 +2277,7 @@ namespace chrono {
             : runtime_error(_Make_string(_Tp, _Info)) {}
 
     private:
-#ifdef __cpp_lib_concepts
+#ifdef __cpp_lib_format
         template <class _Duration>
         _NODISCARD static string _Make_string(const local_time<_Duration>& _Tp, const local_info& _Info);
 #else // ^^^ no workaround / workaround vvv
@@ -2293,7 +2296,7 @@ namespace chrono {
             : runtime_error(_Make_string(_Tp, _Info)) {}
 
     private:
-#ifdef __cpp_lib_concepts
+#ifdef __cpp_lib_format
         template <class _Duration>
         _NODISCARD static string _Make_string(const local_time<_Duration>& _Tp, const local_info& _Info);
 #else // ^^^ no workaround / workaround vvv
@@ -5220,8 +5223,7 @@ namespace chrono {
 #endif // _HAS_CXX20
 } // namespace chrono
 
-#if _HAS_CXX20
-#ifdef __cpp_lib_concepts
+#ifdef __cpp_lib_format
   // [time.format]
 
 template <class _CharT>
@@ -6518,8 +6520,7 @@ namespace chrono {
     }
 } // namespace chrono
 
-#endif // __cpp_lib_concepts
-#endif // _HAS_CXX20
+#endif // __cpp_lib_format
 
 // HELPERS
 template <class _Rep, class _Period>

stl/inc/format

@@ -39,9 +39,10 @@
 #define _FORMAT_
 #include <yvals_core.h>
 #if _STL_COMPILER_PREPROCESSOR
-#ifndef __cpp_lib_concepts
-#pragma message("The contents of <format> are available only with C++20 concepts support.")
-#else // ^^^ !defined(__cpp_lib_concepts) / defined(__cpp_lib_concepts) vvv
+#ifndef __cpp_lib_format
+#pragma message("The contents of <format> are available only in c++latest mode with concepts support;")
+#pragma message("see https://github.com/microsoft/STL/issues/1814 for details.")
+#else // ^^^ !defined(__cpp_lib_format) / defined(__cpp_lib_format) vvv
 
 #include <array>
 #include <charconv>
@@ -3054,6 +3055,6 @@ _STL_RESTORE_CLANG_WARNINGS
 #pragma warning(pop)
 #pragma pack(pop)
 
-#endif // __cpp_lib_concepts
+#endif // __cpp_lib_format
 #endif // _STL_COMPILER_PREPROCESSOR
 #endif // _FORMAT_

stl/inc/ranges

@@ -8,9 +8,10 @@
 #define _RANGES_
 #include <yvals_core.h>
 #if _STL_COMPILER_PREPROCESSOR
-#ifndef __cpp_lib_concepts
-#pragma message("The contents of <ranges> are available only with C++20 concepts support.")
-#else // ^^^ !defined(__cpp_lib_concepts) / defined(__cpp_lib_concepts) vvv
+#ifndef __cpp_lib_ranges
+#pragma message("The contents of <ranges> are available only in c++latest mode with concepts support;")
+#pragma message("see https://github.com/microsoft/STL/issues/1814 for details.")
+#else // ^^^ !defined(__cpp_lib_ranges) / defined(__cpp_lib_ranges) vvv
 #include <iosfwd>
 #include <iterator>
 #include <limits>
@@ -4116,6 +4117,6 @@ _STD_END
 _STL_RESTORE_CLANG_WARNINGS
 #pragma warning(pop)
 #pragma pack(pop)
-#endif // __cpp_lib_concepts
+#endif // __cpp_lib_ranges
 #endif // _STL_COMPILER_PREPROCESSOR
 #endif // _RANGES_

stl/inc/xutility

@@ -2856,10 +2856,12 @@ namespace ranges {
     template <class _Ty>
     inline constexpr bool enable_view = derived_from<_Ty, view_base>;
 
+#ifdef __cpp_lib_ranges // TRANSITION, GH-1814
     // clang-format off
     // CONCEPT ranges::view
     template <class _Ty>
     concept view = range<_Ty> && movable<_Ty> && default_initializable<_Ty> && enable_view<_Ty>;
+#endif // TRANSITION, GH-1814
 
     // CONCEPT ranges::output_range
     template <class _Rng, class _Ty>
@@ -3211,16 +3213,20 @@ namespace ranges {
         _NODISCARD constexpr _Derived& _Cast() noexcept {
             static_assert(derived_from<_Derived, view_interface>,
                 "view_interface's template argument D must derive from view_interface<D> (N4849 [view.interface]/2).");
+#ifdef __cpp_lib_ranges // TRANSITION, GH-1814
             static_assert(view<_Derived>,
                 "view_interface's template argument must model the view concept (N4849 [view.interface]/2).");
+#endif // TRANSITION, GH-1814
             return static_cast<_Derived&>(*this);
         }
 
         _NODISCARD constexpr const _Derived& _Cast() const noexcept {
             static_assert(derived_from<_Derived, view_interface>,
                 "view_interface's template argument D must derive from view_interface<D> (N4849 [view.interface]/2).");
+#ifdef __cpp_lib_ranges // TRANSITION, GH-1814
             static_assert(view<_Derived>,
                 "view_interface's template argument must model the view concept (N4849 [view.interface]/2).");
+#endif // TRANSITION, GH-1814
             return static_cast<const _Derived&>(*this);
         }
 

stl/inc/yvals_core.h

@@ -351,6 +351,20 @@
 // * unique_copy
 
 #include <vcruntime.h>
+
+// TRANSITION, <vcruntime.h> should define _HAS_CXX23
+#ifndef _HAS_CXX23
+#if _HAS_CXX20 && (defined(_MSVC_LANG) && _MSVC_LANG > 202002L || defined(__cplusplus) && __cplusplus > 202002L)
+#define _HAS_CXX23 1
+#else
+#define _HAS_CXX23 0
+#endif
+#endif // _HAS_CXX23
+
+#if _HAS_CXX23 && !_HAS_CXX20
+#error _HAS_CXX23 must imply _HAS_CXX20.
+#endif
+
 #include <xkeycheck.h> // The _HAS_CXX tags must be defined before including this.
 
 #ifndef _STL_WARNING_LEVEL
@@ -1231,9 +1245,9 @@
 #define __cpp_lib_endian            201907L
 #define __cpp_lib_erase_if          202002L
 
-#ifdef __cpp_lib_concepts // TRANSITION, GH-395
+#if _HAS_CXX23 && defined(__cpp_lib_concepts) // TRANSITION, GH-395 and GH-1814
 #define __cpp_lib_format 201907L
-#endif // __cpp_lib_concepts
+#endif // _HAS_CXX23 && defined(__cpp_lib_concepts)
 
 #define __cpp_lib_generic_unordered_lookup     201811L
 #define __cpp_lib_int_pow2                     202002L
@@ -1261,9 +1275,9 @@
 #define __cpp_lib_math_constants          201907L
 #define __cpp_lib_polymorphic_allocator   201902L
 
-#ifdef __cpp_lib_concepts // TRANSITION, GH-395
+#if _HAS_CXX23 && defined(__cpp_lib_concepts) // TRANSITION, GH-395 and GH-1814
 #define __cpp_lib_ranges 201911L
-#endif // __cpp_lib_concepts
+#endif // _HAS_CXX23 && defined(__cpp_lib_concepts)
 
 #define __cpp_lib_remove_cvref            201711L
 #define __cpp_lib_semaphore               201907L

tests/libcxx/usual_matrix.lst

@@ -6,4 +6,4 @@ RUNALL_CROSSLIST
 PM_CL="/EHsc /MTd /std:c++latest /permissive- /FImsvc_stdlib_force_include.h /wd4643"
 RUNALL_CROSSLIST
 PM_CL="/analyze:autolog- /Zc:preprocessor"
-PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing"
+PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /D_HAS_CXX23"

tests/std/include/range_algorithm_support.hpp

@@ -4,9 +4,9 @@
 #pragma once
 
 #include <cassert>
-#include <concepts>
 #include <cstddef>
 #include <functional>
+#include <iterator>
 #include <ranges>
 #include <span>
 #include <type_traits>

tests/std/tests/GH_001103_countl_zero_correctness/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0019R8_atomic_ref/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0053R7_cpp_synchronized_buffered_ostream/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0088R3_variant/env.lst

@@ -11,12 +11,14 @@ PM_CL="/w14640 /Zc:threadSafeInit-"
 RUNALL_CROSSLIST
 PM_CL="/EHsc /MD /D_ITERATOR_DEBUG_LEVEL=0 /std:c++latest /permissive- /Zc:noexceptTypes-"
 PM_CL="/EHsc /MD /D_ITERATOR_DEBUG_LEVEL=0 /std:c++17 /DCONSTEXPR_NOTHROW /DTEST_PERMISSIVE"
+PM_CL="/EHsc /MD /D_ITERATOR_DEBUG_LEVEL=0 /std:c++20 /permissive-"
 PM_CL="/EHsc /MD /D_ITERATOR_DEBUG_LEVEL=1 /std:c++latest /permissive-"
 PM_CL="/EHsc /MD /D_ITERATOR_DEBUG_LEVEL=0 /std:c++latest /permissive- /Zc:char8_t- /Zc:preprocessor"
 PM_CL="/EHsc /MDd /D_ITERATOR_DEBUG_LEVEL=0 /std:c++latest /permissive- /Zc:wchar_t-"
 PM_CL="/EHsc /MDd /D_ITERATOR_DEBUG_LEVEL=1 /std:c++latest /permissive-"
 PM_CL="/EHsc /MDd /D_ITERATOR_DEBUG_LEVEL=2 /std:c++latest /permissive- /fp:except /Zc:preprocessor"
 PM_CL="/EHsc /MDd /D_ITERATOR_DEBUG_LEVEL=2 /std:c++17 /permissive-"
+PM_CL="/EHsc /MDd /D_ITERATOR_DEBUG_LEVEL=2 /std:c++20 /permissive-"
 PM_CL="/EHsc /MT /D_ITERATOR_DEBUG_LEVEL=0 /std:c++latest /permissive-"
 PM_CL="/EHsc /MT /D_ITERATOR_DEBUG_LEVEL=0 /std:c++latest /permissive- /analyze:only /analyze:autolog-"
 PM_CL="/EHsc /MT /D_ITERATOR_DEBUG_LEVEL=1 /std:c++latest /permissive-"
@@ -30,7 +32,9 @@ PM_CL="/clr /MD /std:c++17 /DCONSTEXPR_NOTHROW /DTEST_PERMISSIVE"
 PM_CL="/clr /MDd /std:c++17 /DCONSTEXPR_NOTHROW /DTEST_PERMISSIVE"
 PM_CL="/BE /c /EHsc /MD /std:c++latest /permissive-"
 PM_CL="/BE /c /EHsc /MDd /std:c++17 /permissive-"
+PM_CL="/BE /c /EHsc /MT /std:c++20 /permissive-"
 PM_CL="/BE /c /EHsc /MTd /std:c++latest /permissive-"
 PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /EHsc /MD /std:c++latest /permissive-"
 PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /EHsc /MDd /std:c++17 /DTEST_PERMISSIVE"
-PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /EHsc /MTd /std:c++latest /permissive- /fp:strict"
+PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /EHsc /MT /std:c++latest"
+PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing /EHsc /MTd /std:c++latest /permissive- /D_HAS_CXX23 /fp:strict"

tests/std/tests/P0122R7_span/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0122R7_span_death/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_winsdk_matrix.lst
+RUNALL_INCLUDE ..\usual_20_winsdk_matrix.lst

tests/std/tests/P0202R3_constexpr_algorithm_and_exchange/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0325R4_to_array/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0339R6_polymorphic_allocator/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_clocks/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_dates/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_dates_literals/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_formatting/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\concepts_matrix.lst
+RUNALL_INCLUDE ..\concepts_latest_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_hms/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_io/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_time_point_and_durations/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_time_zones/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0355R7_calendars_and_time_zones_zoned_time/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0356R5_bind_front/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0357R3_supporting_incomplete_types_in_reference_wrapper/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0408R7_efficient_access_to_stringbuf_buffer/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_winsdk_matrix.lst
+RUNALL_INCLUDE ..\usual_20_winsdk_matrix.lst

tests/std/tests/P0415R1_constexpr_complex/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0466R5_layout_compatibility_and_pointer_interconvertibility_traits/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0475R1_P0591R4_uses_allocator_construction/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0476R2_bit_cast/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0528R3_cmpxchg_pad/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0553R4_bit_rotating_and_counting_functions/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0556R3_bit_integral_power_of_two_operations/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0586R2_integer_comparison/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0595R2_is_constant_evaluated/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst

tests/std/tests/P0608R3_improved_variant_converting_constructor/env.lst

@@ -1,4 +1,4 @@
 # Copyright (c) Microsoft Corporation.
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-RUNALL_INCLUDE ..\usual_latest_matrix.lst
+RUNALL_INCLUDE ..\usual_20_matrix.lst