llvm-project

5d74c045 - Fixup test added in #155573 to work when the compiler defaults to C++20. (#156166)

Fixup test added in #155573 to work when the compiler defaults to C++20. (#156166) The test added in #155573 assumes the compiler defaults to the current default of C++17. If the compiler is changed to default to C++20, the test fails because the expected warnings about a construct being a C++20 extension are no longer emitted. This change fixes up the test to work in either C++17 or C++20 mode by disabling the warning and removing the check for it as this is not what is being tested here.