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/ast-print.c b/test/Sema/ast-print.c
index 34b0411..a8988b0 100644
--- a/test/Sema/ast-print.c
+++ b/test/Sema/ast-print.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -ast-print
+// RUN: clang-cc %s -ast-print
 
 typedef void func_typedef();
 func_typedef xxx;