[Isolates] ScavengeVisitor gets member Heap*.

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index 7b54381f6f86bcbbce167131ef93d6711c8c3d94..f7a09456f41ecbdb52cff0eb44184f5eda83bfe1 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -380,7 +380,7 @@ class StaticMarkingVisitor : public StaticVisitorBase {
   // Returns false if the operation fails (lack of stack space).
   static inline bool VisitUnmarkedObjects(Object** start, Object** end) {
     // Return false is we are close to the stack limit.
-    StackLimitCheck check;
+    StackLimitCheck check(Isolate::Current());
     if (check.HasOverflowed()) return false;
 
     // Visit the unmarked objects.