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

[Michael Buch via llvm-commits]

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@@ -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 "
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Michael137 wrote:

yea I don't mind doing that. Other non-composable options already behave that way anyway (like `--name` and `--debug-info=`).

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