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

[James Henderson via llvm-commits]

================
@@ -899,6 +917,12 @@ int main(int argc, char **argv) {
       Find.empty() && !FindAllApple)
     ShowChildren = true;
 
+  if (!ShowChildren && !FilterChildTag.empty()) {
+    WithColor::error() << "incompatible arguments: --filter-child-tag requires "
----------------
jh7370 wrote:

I'd be tempted to just silently do nothing in this case, rather than emitting an error.

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