[clang] Allow attributes in constructor argument list in pre-C++11

Author: camc

clang/lib/Parse/ParseDecl.cpp

@@ -6007,7 +6007,7 @@ bool Parser::isConstructorDeclarator(bool IsUnqualified, bool DeductionGuide,
 
   // A C++11 attribute here signals that we have a constructor, and is an
   // attribute on the first constructor parameter.
-  if (getLangOpts().CPlusPlus11 &&
+  if (getLangOpts().CPlusPlus &&
       isCXX11AttributeSpecifier(/*Disambiguate*/ false,
                                 /*OuterMightBeMessageSend*/ true) !=
           CXX11AttributeKind::NotAttributeSpecifier) {