Flush code faster when doing emergency GCs.

src/heap/heap-inl.h

Index: src/heap/heap-inl.h
diff --git a/src/heap/heap-inl.h b/src/heap/heap-inl.h
index 9e3421e3220fdd8606cfe2f3445f92b91f3f97d9..bcbf76df10a033d1f9eecee164eb636432cb58e8 100644
--- a/src/heap/heap-inl.h
+++ b/src/heap/heap-inl.h
@@ -774,6 +774,15 @@ void VerifySmisVisitor::VisitPointers(Object** start, Object** end) {
     CHECK((*current)->IsSmi());
   }
 }
+
+
+FlushEagerly::FlushEagerly(Heap* heap)
+    : heap_(heap), old_state_(heap->flush_eagerly()) {
+  heap->set_flush_eagerly(true);
+}
+
+
+FlushEagerly::~FlushEagerly() { heap_->set_flush_eagerly(old_state_); }
 }
 }  // namespace v8::internal