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/CodeGen/static-local-union.c b/test/CodeGen/static-local-union.c
index 9515a31..f276b20 100644
--- a/test/CodeGen/static-local-union.c
+++ b/test/CodeGen/static-local-union.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm < %s
+// RUN: clang-cc -emit-llvm < %s
 
 int a() {static union{int a;} r[2] = {1,2};return r[1].a;}