[clang] [OpenACC][CIR] 'bind' lowering with identifier (PR #171749)

[Razvan Lupusoru via cfe-commits]

razvanlupusoru wrote:

> SO, in order to implement this, I've decided that the 'called as' (bound) function must have the same signature as the one marked by the 'routine'. This is trivially sensible in non-member functions, however requires a bit more thought for member(and thus lambda-call-operators) functions. In this case, we 'promote' the type of the function to a 'free' function by turning the implicit 'this' to an explicit 'this'.

This seems sensible to me and glad you found a reasonable way to do this.

https://github.com/llvm/llvm-project/pull/171749