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/SemaObjC/gcc-cast-ext.m b/test/SemaObjC/gcc-cast-ext.m
index 866aee9..5d6670e 100644
--- a/test/SemaObjC/gcc-cast-ext.m
+++ b/test/SemaObjC/gcc-cast-ext.m
@@ -1,4 +1,4 @@
-// RUN: clang %s -verify -fms-extensions
+// RUN: clang-cc %s -verify -fms-extensions
 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
 typedef struct _NSRange { } NSRange;