Add a host parameter to ObjectVisitor methods.

src/heap/heap-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_HEAP_HEAP_INL_H_
 #define V8_HEAP_HEAP_INL_H_
 
 #include <cmath>
 
 #include "src/base/platform/platform.h"
@@ skipping 838 matching lines @@
 
 AlwaysAllocateScope::AlwaysAllocateScope(Isolate* isolate)
     : heap_(isolate->heap()) {
   heap_->always_allocate_scope_count_.Increment(1);
 }
 
 AlwaysAllocateScope::~AlwaysAllocateScope() {
   heap_->always_allocate_scope_count_.Decrement(1);
 }
 
-void VerifyPointersVisitor::VisitPointers(Object** start, Object** end) {
+void VerifyPointersVisitor::VisitPointers(HeapObject* host, Object** start,
+                                          Object** end) {
   VerifyPointers(start, end);
 }
 
 void VerifyPointersVisitor::VisitRootPointers(Root root, Object** start,
                                               Object** end) {
   VerifyPointers(start, end);
 }
 
 void VerifyPointersVisitor::VerifyPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
@@ skipping 10 matching lines @@
 void VerifySmisVisitor::VisitRootPointers(Root root, Object** start,
                                           Object** end) {
   for (Object** current = start; current < end; current++) {
     CHECK((*current)->IsSmi());
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_INL_H_