Add support for DW_FORM_dataN and DW_FORM_udata to the DIE hashing
algorithm. Update the split dwarf hashing testcase accordingly - this
should be the last time that the hash of an empty file changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189427 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DIEHash.h b/lib/CodeGen/AsmPrinter/DIEHash.h
index f53529c..d83f78f 100644
--- a/lib/CodeGen/AsmPrinter/DIEHash.h
+++ b/lib/CodeGen/AsmPrinter/DIEHash.h
@@ -29,6 +29,7 @@
   // Collection of all attributes used in hashing a particular DIE.
   struct DIEAttrs {
     AttrEntry DW_AT_name;
+    AttrEntry DW_AT_language;
   };
 
 public: