[llvm] [NFC][TableGen] Print topmost def location for Intrinsics/Insts (PR #160796)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Are you suggesting we print the whole stack? It's just more comments, but maybe possible. We can make it more compact as well by commoning file name when possible.

https://github.com/llvm/llvm-project/pull/160796