[Clang] Implement CWG2518 - static_assert(false) [v6.32] #15753
Merged
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This allows
static_assert(false)
to not be ill-formed in template definitions.This change is applied as a DR in all C++ modes.
Of notes, a couple of tests were relying of the eager nature of static_assert
I don't know if the changes to
static_assert
still allow that sort of tests to be expressed.
Reviewed By: #clang-language-wg, erichkeane, aaron.ballman
Differential Revision: https://reviews.llvm.org/D144285
Fixes the build with newer versions of MSVC's STL, reported as #15321
(cherry picked from commit c767271, backport of #15437)