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

[Michael Buch via llvm-commits]

================

----------------
Michael137 wrote:

Like with other options, you specify the option multiple times. E.g., `dwarfdump -t DW_TAG_foo -t DW_TAG_bar`

Other options like `--name` behave the same

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