TypeRef, not ClassRef.

Old habits die hard. The things in question have been called TypeRefs
for quite a while now.

Change-Id: I77b0066a67c63b8e801ec62eb613f18a4812585a
diff --git a/libdex/InstrUtils.c b/libdex/InstrUtils.c
index 5d324b7..e98de91 100644
--- a/libdex/InstrUtils.c
+++ b/libdex/InstrUtils.c
@@ -1241,7 +1241,7 @@
         case OP_NEW_ARRAY:
         case OP_FILLED_NEW_ARRAY:
         case OP_FILLED_NEW_ARRAY_RANGE:
-            indexType = kIndexClassRef;
+            indexType = kIndexTypeRef;
             break;
         case OP_SGET:
         case OP_SGET_WIDE: