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/Parser/objc-alias-printing.m b/test/Parser/objc-alias-printing.m
index 67e013f..e121bed 100644
--- a/test/Parser/objc-alias-printing.m
+++ b/test/Parser/objc-alias-printing.m
@@ -1,4 +1,4 @@
-// RUN: clang -ast-print %s
+// RUN: clang-cc -ast-print %s
 
 @protocol P1 @end
 @protocol P2 @end