Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/CodeGenObjC/encode-test-2.m b/clang/test/CodeGenObjC/encode-test-2.m
index 0df54ca..6901168 100644
--- a/clang/test/CodeGenObjC/encode-test-2.m
+++ b/clang/test/CodeGenObjC/encode-test-2.m
@@ -1,4 +1,4 @@
-// RUN: clang -triple=i686-apple-darwin9 -fnext-runtime -emit-llvm -o %t %s &&
+// RUN: clang-cc -triple=i686-apple-darwin9 -fnext-runtime -emit-llvm -o %t %s &&
 // RUN: grep -e "@\\\22<X>\\\22" %t  &&
 // RUN: grep -e "@\\\22<X><Y>\\\22" %t  &&
 // RUN: grep -e "@\\\22<X><Y><Z>\\\22" %t  &&