ignore parens for the DeclRefExpr of the parameter

Author: 5chmidti

clang-tools-extra/clang-tidy/bugprone/ReturnConstRefFromParameterCheck.cpp

@@ -16,14 +16,14 @@ using namespace clang::ast_matchers;
 namespace clang::tidy::bugprone {
 
 void ReturnConstRefFromParameterCheck::registerMatchers(MatchFinder *Finder) {
-  const auto DRef =
+  const auto DRef = ignoringParens(
       declRefExpr(
           to(parmVarDecl(hasType(hasCanonicalType(
                              qualType(lValueReferenceType(pointee(
                                           qualType(isConstQualified()))))
                                  .bind("type"))))
                  .bind("param")))
-          .bind("dref");
+          .bind("dref"));
   const auto Func =
       functionDecl(hasReturnTypeLoc(loc(
                        qualType(hasCanonicalType(equalsBoundNode("type"))))))