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/CodeGen/mangle.c b/test/CodeGen/mangle.c
index 89e0e8a..6571a4b 100644
--- a/test/CodeGen/mangle.c
+++ b/test/CodeGen/mangle.c
@@ -1,4 +1,4 @@
-// RUN: clang -arch i386 -emit-llvm -o %t %s &&
+// RUN: clang-cc -arch i386 -emit-llvm -o %t %s &&
 // RUN: grep '@_Z2f0i' %t &&
 // RUN: grep '@_Z2f0l' %t &&