[clang] [NFC][CLANG] Fix static analyzer bugs about unnecessary object copies with auto keyword (PR #75082)

[via cfe-commits]

================
@@ -876,7 +876,7 @@ void EmitAssemblyHelper::RunOptimizationPipeline(
           << PluginFN << toString(PassPlugin.takeError());
     }
   }
-  for (auto PassCallback : CodeGenOpts.PassBuilderCallbacks)
+  for (const auto &PassCallback : CodeGenOpts.PassBuilderCallbacks)
----------------
smanna12 wrote:

Thank you @tahonermann for reviews and information!

https://github.com/llvm/llvm-project/pull/75082