[heap] Use right BodyDescriptor for JSWeakCollection

src/heap/objects-visiting-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_VISITING_INL_H_
 #define V8_OBJECTS_VISITING_INL_H_
 
 #include "src/heap/array-buffer-tracker.h"
 #include "src/heap/objects-visiting.h"
 #include "src/ic/ic-state.h"
@@ skipping 66 matching lines @@
       &FlexibleBodyVisitor<StaticVisitor, JSFunction::BodyDescriptorWeakCode,
                            int>::Visit);
 
   table_.Register(
       kVisitJSArrayBuffer,
       &FlexibleBodyVisitor<StaticVisitor, JSArrayBuffer::BodyDescriptor,
                            int>::Visit);
 
   table_.Register(kVisitFreeSpace, &VisitFreeSpace);
 
-  table_.Register(kVisitJSWeakCollection, &JSObjectVisitor::Visit);
+  table_.Register(
+      kVisitJSWeakCollection,
+      &FlexibleBodyVisitor<StaticVisitor, JSWeakCollection::BodyDescriptor,
+                           int>::Visit);
 
   table_.Register(kVisitJSRegExp, &JSObjectVisitor::Visit);
 
   table_.template RegisterSpecializations<DataObjectVisitor, kVisitDataObject,
                                           kVisitDataObjectGeneric>();
 
   table_.template RegisterSpecializations<JSObjectVisitor, kVisitJSObject,
                                           kVisitJSObjectGeneric>();
 
   // Not using specialized Api object visitor for newspace.
@@ skipping 556 matching lines @@
   typedef FlexibleBodyVisitor<StaticVisitor, JSFunction::BodyDescriptorWeakCode,
                               void> JSFunctionWeakCodeBodyVisitor;
   JSFunctionWeakCodeBodyVisitor::Visit(map, object);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_VISITING_INL_H_