[clang] [Sema] Compare canonical conversion function (PR #154158)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

I don't feel bad for the patch itself.

> With lazy template loading, it is possible to find non-canonical FunctionDecls

But this may be concerning. Do you feel this may cause more problem?

https://github.com/llvm/llvm-project/pull/154158