1662     const FunctionDecl *FirstFunction,  in diagnoseMismatch()  argument
1664   if (FirstFunction == SecondFunction)  in diagnoseMismatch()
1677   std::string FirstModule = getOwningModuleNameForDiagnostic(FirstFunction);  in diagnoseMismatch()
1680   auto DiagError = [FirstFunction, &FirstModule,  in diagnoseMismatch()
1684            << FirstFunction << FirstModule.empty() << FirstModule << Range  in diagnoseMismatch()
1693   if (computeODRHash(FirstFunction->getReturnType()) !=  in diagnoseMismatch()
1695     DiagError(FirstFunction->getReturnTypeSourceRange().getBegin(),  in diagnoseMismatch()
1696               FirstFunction->getReturnTypeSourceRange(), ReturnType)  in diagnoseMismatch()
1697         << FirstFunction->getReturnType();  in diagnoseMismatch()
1704   assert(FirstFunction->param_size() == SecondFunction->param_size() &&  in diagnoseMismatch()
1707   size_t ParamSize = FirstFunction->param_size();  in diagnoseMismatch()
1709     const ParmVarDecl *FirstParam = FirstFunction->getParamDecl(I);  in diagnoseMismatch()
1787   DiagError(FirstFunction->getLocation(), FirstFunction->getSourceRange(),  in diagnoseMismatch()