[clang] [clang] Mark GlobalAllocationFunctionVisibility as benign. (PR #145654)

[Takuto Ikuta via cfe-commits]

atetubou wrote:

Sorry, I thought https://github.com/llvm/llvm-project/blob/67be4fe3d5fd986a3149de3806bcf2c92320015e/clang/lib/Sema/SemaExprCXX.cpp#L3521is called after code path module file is made. But that is not easy to confirm.

I'll check the codebase using the flag more.

https://github.com/llvm/llvm-project/pull/145654