Add a host parameter to ObjectVisitor methods.

src/heap/heap-inl.h

Index: src/heap/heap-inl.h
diff --git a/src/heap/heap-inl.h b/src/heap/heap-inl.h
index 12b19802237d8149d8499887e5ff389513147b71..59074eb6807d581ed09d591eb83026b81ebec59b 100644
--- a/src/heap/heap-inl.h
+++ b/src/heap/heap-inl.h
@@ -856,7 +856,8 @@ 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);
 }