[clang] [AMDGPU] Fix builtin crash with template parameter size argument (PR #175767)

[Yaxun Liu via cfe-commits]

yxsamliu wrote:

Thanks for the suggestion! Updated to use `isInstantiationDependent()`. Also added tests for `sizeof(T)` cases which are instantiation-dependent but not value-dependent.

https://github.com/llvm/llvm-project/pull/175767