[clang] [Clang] Correctly handle taking the address of an explicit object member function template (PR #147046)

[via cfe-commits]

bgra8 wrote:

@cor3ntin here's a small reproducer of the `clang` crash: https://godbolt.org/z/xETWMMzvx

Can you please take a look?

https://github.com/llvm/llvm-project/pull/147046