Mark pages created during bootstrapping as never-evacuate.

src/heap/spaces.cc

Index: src/heap/spaces.cc
diff --git a/src/heap/spaces.cc b/src/heap/spaces.cc
index 1a0d0bbecc622e3eb595cbf3442fdd7727d6b520..de752f3b780b5173be0aac9049c6b66a3414988d 100644
--- a/src/heap/spaces.cc
+++ b/src/heap/spaces.cc
@@ -1032,6 +1032,9 @@ bool PagedSpace::Expand() {
                                                                 executable());
   if (p == NULL) return false;
 
+  // Pages created during bootstrapping may contain immortal immovable objects.
+  if (!heap()->deserialization_complete()) p->MarkNeverEvacuate();
+
   DCHECK(Capacity() <= max_capacity_);
 
   p->InsertAfter(anchor_.prev_page());