[clang] [clang][codegen] Fix possible crash when setting TBAA metadata on FP math libcalls (PR #108575)

[Benjamin Maxwell via cfe-commits]

MacDue wrote:

Thanks for the reduction! I tracked this down to the "int" TBAA metadata being added to calls with indirect arguments (with seems broken even without this change). 

I've created a possible fix here: https://github.com/llvm/llvm-project/pull/108853#event-14276322905. 

https://github.com/llvm/llvm-project/pull/108575