[llvm] [llvm-symbolizer] Have --obj participate in markup resolution (PR #183444)

[Joshua Seaton via llvm-commits]

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@@ -769,6 +769,12 @@ LLVMSymbolizer::getOrCreateModuleInfo(StringRef ModuleName) {
   }
   ObjectPair Objects = ObjectsOrErr.get();
 
+  // Register the build ID so that build-ID-based lookups (e.g., from
+  // --filter-markup) can resolve to this path.
+  BuildIDRef BID = getBuildID(Objects.first);
+  if (!BID.empty())
+    BuildIDPaths[getBuildIDStr(BID)] = std::string(BinaryName);
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joshuaseaton wrote:

Done! Would you like me to add mention of the `.gnu_debuglink`-related behavior? If, so any suggested comment? (I'm not sure I understand what's involved there at the moment)

https://github.com/llvm/llvm-project/pull/183444