Another round of cleanups for http://www.dartbug.com/15922

runtime/lib/object.cc

 // Copyright (c) 2011, 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/bootstrap_natives.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/exceptions.h"
 #include "vm/heap.h"
 #include "vm/native_entry.h"
@@ skipping 69 matching lines @@
     } else {
       Class& instance_class = Class::Handle(instance.clazz());
       function = instance_class.LookupDynamicFunction(member_name);
       while (function.IsNull()) {
         instance_class = instance_class.SuperClass();
         if (instance_class.IsNull()) break;
         function = instance_class.LookupDynamicFunction(member_name);
       }
     }
     if (!function.IsNull()) {
-      const int total_num_parameters = function.NumParameters();
+      const intptr_t total_num_parameters = function.NumParameters();
       const Array& array = Array::Handle(Array::New(total_num_parameters - 1));
       // Skip receiver.
       for (int i = 1; i < total_num_parameters; i++) {
         array.SetAt(i - 1, String::Handle(function.ParameterNameAt(i)));
       }
       dart_arguments.SetAt(5, array);
     }
   }
   Exceptions::ThrowByType(Exceptions::kNoSuchMethod, dart_arguments);
   return Object::null();
@@ skipping 123 matching lines @@
 }
 
 
 DEFINE_NATIVE_ENTRY(AbstractType_toString, 1) {
   const AbstractType& type =
       AbstractType::CheckedHandle(arguments->NativeArgAt(0));
   return type.UserVisibleName();
 }
 
 }  // namespace dart