* Allow Clang10 in the STL
This PR includes changes necessary to allow (but not require) clang 10 in the STL. It also includes test changes to allow the tests to pass given new clang warnings for deprecated behaviors, and an update to the LLVM reference to get similar changes that have been applied upstream to libc++ tests.
Details:
* In `<compare>`, remove workarounds for LLVM-41991 in Clang 10 RC1 fixed in RC2.
* In `<concepts>`, remove `_SILENCE_CLANG_CONCEPTS_MESSAGE`.
* In `<queue>` and `<stack>`, befriend only corresponding specializations of operator templates.
* In `<system_error>`, fix the `__cpp_constexpr_dynamic_alloc` implementation of `_Immortalize_memcpy_image` (which we apparently didn't review at all).
* In `<experimental/filesystem>`, apply a fix equivalent to the resolution of LWG-3244.
* Update `P0220R1_optional` from upstream.
* In `P0595R2_is_constant_evaluated`, silence Clang's warning for using `is_constant_evaluated` in a manifestly constant-evaluated context.
* In `P0896R4_ranges_iterator_machinery`, fix bogus test cases that were expecting VSO-1008447, silence "unused variable" warnings, and avoid taking advantage of too-lenient MSVC comparison rewrite behavior.
* In `P0896R4_ranges_range_machinery`, silence "unused variable" warning.
* In `P0898R3_concepts`, Remove workaround for LLVM-44627 in Clang 10 RC1 fixed in RC2.
* In `VSO_0000000_type_traits` and `tr1/type_traits5`, silence volatile function parameter deprecation warnings.
* In `tr1/condition_variable`, `tr1/regex1`, and `tr1/regex3`, remove unnecessary copy assignment operators that were prompting Clang warnings about the implicitly definition of a copy constructor for such a class being deprecated.
* In `tr1/csetjmp`, silence volatile increment deprecation warnings.
Skip new libc++ tests:
* Various `span` tests that expect `const_iterator` (libc++ doesn't yet implement LWG-3320)
* tests for the implementation of P1135R6 "The C++ Synchronization Library" which we do not yet implement
* Add tests/std.
* Update other files.
NOTICE.txt
Mention the LLVM Project, as its code appears
in tests/std/tests/P0220R1_optional/test.cpp and elsewhere.
azure-devops/enforce-clang-format.cmd
Process everything within tests. This includes libcxx, std, and tr1.
docs/cgmanifest.json
Update this file for Microsoft-internal purposes. (It records the commit
hashes of repos whose source code we've incorporated into our own repo.
For llvm-project, this is distinct from the submodule's current commit.)
tests/tr1/run.pl
Mention runbe.pl in lowercase, to match the file itself.
* Improve run.pl and runbe.pl comments.
Charlie Barto
Casey Carter
Stephan T. Lavavej