Adjust assertion in Heap::IdleNotification.

R=mstarzinger@chromium.org
BUG=v8:1715

Review URL: http://codereview.chromium.org/8038045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9467 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap.cc

@@ -4594,8 +4594,11 @@ bool Heap::IdleNotification() {
 
   // Make sure that we have no pending context disposals and
   // conditionally uncommit from space.
-  ASSERT((contexts_disposed_ == 0) || incremental_marking()->IsMarking());
+  // Take into account that we might have decided to delay full collection
+  // because incremental marking is in progress.
+  ASSERT((contexts_disposed_ == 0) || !incremental_marking()->IsStopped());
   if (uncommit) UncommitFromSpace();
+
   return finished;
 }