Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/SemaCXX/overload-member-call.cpp b/clang/test/SemaCXX/overload-member-call.cpp
index 07936e7..96e570d 100644
--- a/clang/test/SemaCXX/overload-member-call.cpp
+++ b/clang/test/SemaCXX/overload-member-call.cpp
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s
+// RUN: clang-cc -fsyntax-only -verify %s
 
 struct X {
   int& f(int) const; // expected-note 2 {{candidate function}}