Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/Parser/cxx-using-directive.cpp b/clang/test/Parser/cxx-using-directive.cpp
index bf89bb1..676f4e6 100644
--- a/clang/test/Parser/cxx-using-directive.cpp
+++ b/clang/test/Parser/cxx-using-directive.cpp
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s
+// RUN: clang-cc -fsyntax-only -verify %s
 
 class A {};