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/SemaCXX/overload-call-copycon.cpp b/test/SemaCXX/overload-call-copycon.cpp
index 281f4ce..755e27a 100644
--- a/test/SemaCXX/overload-call-copycon.cpp
+++ b/test/SemaCXX/overload-call-copycon.cpp
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only %s 
+// RUN: clang-cc -fsyntax-only %s 
 class X { };
 
 int& copycon(X x);