Notify collector about lazily deoptimized code objects.

src/incremental-marking.cc

Index: src/incremental-marking.cc
diff --git a/src/incremental-marking.cc b/src/incremental-marking.cc
index f4ea1005796f301d1a71ece00e86b1032e5e3d99..b6bf0d36b131320fae6c1654ae4ae6ea4a72bf68 100644
--- a/src/incremental-marking.cc
+++ b/src/incremental-marking.cc
@@ -453,6 +453,16 @@ void IncrementalMarking::StartMarking() {
     MarkObjectGreyDoNotEnqueue(heap_->polymorphic_code_cache());
   }
 
+  if (is_compacting_) {
+    // It's difficult to filter out slots recorded for large objects.
+    LargeObjectIterator it(heap_->lo_space());
+    for (HeapObject* obj = it.Next(); obj != NULL; obj = it.Next()) {
+      if (obj->IsFixedArray() || obj->IsCode()) {
+        Page::FromAddress(obj->address())->SetFlag(Page::RESCAN_ON_EVACUATION);
+      }
+    }
+  }
+
   // Mark strong roots grey.
   IncrementalMarkingRootMarkingVisitor visitor(heap_, this);
   heap_->IterateStrongRoots(&visitor, VISIT_ONLY_STRONG);