Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/SemaObjC/conditional-expr-2.m b/clang/test/SemaObjC/conditional-expr-2.m
index 260482a..831f151 100644
--- a/clang/test/SemaObjC/conditional-expr-2.m
+++ b/clang/test/SemaObjC/conditional-expr-2.m
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s
+// RUN: clang-cc -fsyntax-only -verify %s
 
 @interface A
 @end