Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/check_cast.c b/test/Parser/check_cast.c
index c69f0f0..4df851c 100644
--- a/test/Parser/check_cast.c
+++ b/test/Parser/check_cast.c
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s
+// RUN: clang-cc -fsyntax-only -verify %s
 struct foo {
   int a;
 };