[NFC] Use %clang_cc instead of %clang in c++20 module tests
[NFC] Format .cppm files in tests
Revert "[NFC] format .cppm files in test"This reverts commit 7c51a128339184c64307f3862e4cd36bf996189b.Breaks SemaCXX/modules-ts.cppm in check-clang.
[NFC] format .cppm files in test
[C++20] [Modules] Namespace Declaration shouldn't have module linkageAccording to [basic.namespace.general]/p2, a namespace declarationshouldn't have a module linkage.> A namespace is never attac
[C++20] [Modules] Namespace Declaration shouldn't have module linkageAccording to [basic.namespace.general]/p2, a namespace declarationshouldn't have a module linkage.> A namespace is never attached to a named module and never has a name> with module linkage.Without this patch, the compiler would crash for the test in assertionenabled build due to inconsistent linkage for redeclaration fornamespaces.Reviewed by: rsmithDifferential Revision: https://reviews.llvm.org/D115132
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