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/implicit-cast.c b/test/Sema/implicit-cast.c
index fe83bd9..ce34ad6 100644
--- a/test/Sema/implicit-cast.c
+++ b/test/Sema/implicit-cast.c
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only %s
+// RUN: clang-cc -fsyntax-only %s
 
 static char *test1(int cf) {
   return cf ? "abc" : 0;