[clang] [Clang] Add support for GCC bound member functions extension (PR #135649)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

Not sure if anyone has mentioned this elsewhere, but there's a significant problem with the type of the returned function pointer: a normal function pointer doesn't necessarily have the correct calling convention.  In practice, this is likely to cause problems on Windows.

https://github.com/llvm/llvm-project/pull/135649