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

[Rahul Joshi via llvm-commits]

jurahul wrote:

@topperc this address your comment on https://github.com/llvm/llvm-project/pull/156927 and make the locations printed more useful.

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