Avoid resolution for field types in image dumping.

Bug seen when dumping EMPTY_TABLE of java.util.HashMap as EMPTY_TABLE has type
java.util.Map$Entry[] which isn't in the boot image, but the value has type
java.util.HashMap$HashMapEntry[] which is.

Change-Id: Ia0bd445c6f5bb5837a92e6c2b2f4207e89b872f4
diff --git a/src/oatdump.cc b/src/oatdump.cc
index 538e1bb..a8a0e86 100644
--- a/src/oatdump.cc
+++ b/src/oatdump.cc
@@ -853,7 +853,13 @@
       if (value == NULL) {
         os << StringPrintf("null   %s\n", PrettyDescriptor(descriptor).c_str());
       } else {
-        PrettyObjectValue(os, fh.GetType(), value);
+        // Grab the field type without causing resolution.
+        mirror::Class* field_type = fh.GetType(false);
+        if (field_type != NULL) {
+          PrettyObjectValue(os, field_type, value);
+        } else {
+          os << StringPrintf("%p   %s\n", value, PrettyDescriptor(descriptor).c_str());
+        }
       }
     }
   }