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/Sema/expr-comma-c89.c b/test/Sema/expr-comma-c89.c
index 4949ee3..b2b17dc 100644
--- a/test/Sema/expr-comma-c89.c
+++ b/test/Sema/expr-comma-c89.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -fsyntax-only -verify -std=c99
+// RUN: clang-cc %s -fsyntax-only -verify -std=c99
 // rdar://6095180
 
 #include <assert.h>