Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/SemaTemplate/instantiate-enum.cpp b/clang/test/SemaTemplate/instantiate-enum.cpp
index 665746c..a7acf22 100644
--- a/clang/test/SemaTemplate/instantiate-enum.cpp
+++ b/clang/test/SemaTemplate/instantiate-enum.cpp
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only %s
+// RUN: clang-cc -fsyntax-only %s
 
 template<typename T, T I, int J>
 struct adder {