Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/Sema/expr-address-of.c b/clang/test/Sema/expr-address-of.c
index 7dd7dd6..b3ea9c5 100644
--- a/clang/test/Sema/expr-address-of.c
+++ b/clang/test/Sema/expr-address-of.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -verify -fsyntax-only
+// RUN: clang-cc %s -verify -fsyntax-only
 struct xx { int bitf:1; };
 
 struct entry { struct xx *whatever;