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/attributes.c b/test/Parser/attributes.c
index d7fc35d..37fa0ca 100644
--- a/test/Parser/attributes.c
+++ b/test/Parser/attributes.c
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only -verify %s -pedantic -std=c99
+// RUN: clang-cc -fsyntax-only -verify %s -pedantic -std=c99
 
 int __attribute__(()) x;  // expected-warning {{extension used}}