[clang] [Clang] Add support for [[msvc::noinline]] attribute. (PR #91720)

[Xu Zhang via cfe-commits]

================
@@ -0,0 +1,72 @@
+// RUN: %clang_cc1 -verify -fsyntax-only %s -Wno-c++17-extensions
----------------
simonzgx wrote:

I removed the redundant unit tests, but no new test cases were added. I'm not sure if that's acceptable, because `[[msvc::noinline]]` is just an alias for `[[clang::noinline]]`. What do you think?

https://github.com/llvm/llvm-project/pull/91720