VM: Evaluate-in-frame should happen in the scope of the method class, not the receiver class.

runtime/vm/service.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/service.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/globals.h"
 
@@ skipping 2132 matching lines @@
     const Object& result = Object::Handle(zone,
         cls.Evaluate(expr_str, Array::empty_array(), Array::empty_array()));
     result.PrintJSON(js, true);
     return true;
   }
   if ((obj.IsInstance() || obj.IsNull()) &&
       !ContainsNonInstance(obj)) {
     // We don't use Instance::Cast here because it doesn't allow null.
     Instance& instance = Instance::Handle(zone);
     instance ^= obj.raw();
+    const Class& receiver_cls = Class::Handle(zone, instance.clazz());
     const Object& result =
-        Object::Handle(zone, instance.Evaluate(expr_str,
+        Object::Handle(zone, instance.Evaluate(receiver_cls,
+                                               expr_str,
                                                Array::empty_array(),
                                                Array::empty_array()));
     result.PrintJSON(js, true);
     return true;
   }
   js->PrintError(kInvalidParams,
                  "%s: invalid 'targetId' parameter: "
                  "Cannot evaluate against a VM-internal object", js->method());
   return true;
 }
@@ skipping 1941 matching lines @@
     if (strcmp(method_name, method.name) == 0) {
       return &method;
     }
   }
   return NULL;
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart