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/expressions.m b/test/Parser/expressions.m
index 8e314ac..e9e4121 100644
--- a/test/Parser/expressions.m
+++ b/test/Parser/expressions.m
@@ -1,4 +1,4 @@
-// RUN: clang -parse-noop %s
+// RUN: clang-cc -parse-noop %s
 
 void test1() {
   @"s";            // expected-warning {{expression result unused}}