Implement support for C++ nested-name-specifiers ('foo::bar::x') in the Parser side.
No Sema functionality change, just the signatures of the Action/Sema methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58913 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Lexer/cxx0x_keyword.cpp b/test/Lexer/cxx0x_keyword.cpp
index d55649c..a54d263 100644
--- a/test/Lexer/cxx0x_keyword.cpp
+++ b/test/Lexer/cxx0x_keyword.cpp
@@ -1,2 +1,2 @@
 // RUN: clang -fsyntax-only -verify -std=c++0x %s 2>&1
-int static_assert; /* expected-error {{expected identifier or '('}} */
+int static_assert; /* expected-error {{expected unqualified-id}} */