Support nested-name-specifiers for C++ member access expressions, e.g.,

  this->Base::foo

from James Porter!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78278 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PrintParserCallbacks.cpp b/lib/Frontend/PrintParserCallbacks.cpp
index 4231d66..43a5b6f 100644
--- a/lib/Frontend/PrintParserCallbacks.cpp
+++ b/lib/Frontend/PrintParserCallbacks.cpp
@@ -532,7 +532,8 @@
                                                       tok::TokenKind OpKind,
                                                       SourceLocation MemberLoc,
                                                       IdentifierInfo &Member,
-                                                      DeclPtrTy ImplDecl) {
+                                                      DeclPtrTy ImplDecl,
+                                                      const CXXScopeSpec *SS=0) {
       Out << __FUNCTION__ << "\n";
       return ExprEmpty();
     }