[clang] [llvm] [clang][DebugInfo] Add virtual call-site target information in DWARF. (PR #167666)

[David Blaikie via llvm-commits]

dwblaikie wrote:

> @dwblaikie Thanks very much for your great input. After some discussions with our debugger team, adding a new attribute to eliminate the current ambiguity works well for them, A `DW_AT_LLVM_virtual_call_origin` has been suggested.

Any thoughts on the NOP-sled as a way to get unique addresses?

https://github.com/llvm/llvm-project/pull/167666