Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/SemaCXX/function-redecl.cpp b/clang/test/SemaCXX/function-redecl.cpp
index baad312..9f67837 100644
--- a/clang/test/SemaCXX/function-redecl.cpp
+++ b/clang/test/SemaCXX/function-redecl.cpp
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s
+// RUN: clang-cc -fsyntax-only -verify %s
 int foo(int);
 
 namespace N {