Pass the context from which a given receiver is accessed explicitly

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index 86ae7b646b0fdee3549243495dd5cc43c74bbbe6..8c167e14215a12a18a7cc51eac7b340ebe167224 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -679,11 +679,11 @@ class Isolate {
   Handle<JSArray> GetDetailedFromSimpleStackTrace(
       Handle<JSObject> error_object);
 
-  // Returns if the top context may access the given global object. If
+  // Returns if the given context may access the given global object. If
   // the result is false, the pending exception is guaranteed to be
   // set.
+  bool MayAccess(Handle<Context> accessing_context, Handle<JSObject> receiver);
 
-  bool MayAccess(Handle<JSObject> receiver);
   bool IsInternallyUsedPropertyName(Handle<Object> name);
   bool IsInternallyUsedPropertyName(Object* name);