Fix clearing of dead dependent codes and verify weak embedded maps on full GC.

src/heap-inl.h

Index: src/heap-inl.h
diff --git a/src/heap-inl.h b/src/heap-inl.h
index b8fb1e8a26ba9d68ce6bd4bbd8a85ca4e33c6a42..7b64a3b20b4fae0d4cbc2c48651d3cf145fa327b 100644
--- a/src/heap-inl.h
+++ b/src/heap-inl.h
@@ -781,6 +781,18 @@ AlwaysAllocateScope::~AlwaysAllocateScope() {
 }
 
 
+#ifdef VERIFY_HEAP
+NoWeakEmbeddedMapsVerificationScope::NoWeakEmbeddedMapsVerificationScope() {
+  HEAP->no_weak_embedded_maps_verification_scope_depth_++;
+}
+
+
+NoWeakEmbeddedMapsVerificationScope::~NoWeakEmbeddedMapsVerificationScope() {
+  HEAP->no_weak_embedded_maps_verification_scope_depth_--;
+}
+#endif
+
+
 void VerifyPointersVisitor::VisitPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
     if ((*current)->IsHeapObject()) {