Match behavior of Apple's ld by resolving symlinks in OSO paths

Author: jmcclellan-figma

lld/MachO/SyntheticSections.cpp

@@ -1186,6 +1186,10 @@ void SymtabSection::emitObjectFileStab(ObjFile *file) {
   if (ec)
     fatal("failed to get absolute path for " + path);
 
+  SmallString<261> resolvedPath;
+  if (!sys::fs::real_path(path, resolvedPath))
+    path = resolvedPath;
+
   if (!file->archiveName.empty())
     path.append({"(", file->getName(), ")"});