[llvm] [llvm][dwarfdump] Add --child-tags option to filter by DWARF tags (PR #165720)

[David Blaikie via llvm-commits]

dwblaikie wrote:

Seems OK to me as a feature - though I wonder if we're getting to the point of "should have an arbitrary query language" for querying DWARF at this point? (did we ever end up with the json output for dwarfdump? perhaps that's the way to do it - dump to json and use jquery?)

https://github.com/llvm/llvm-project/pull/165720