Revert "Remove IC age from Code."

src/heap/objects-visiting-inl.h

Index: src/heap/objects-visiting-inl.h
diff --git a/src/heap/objects-visiting-inl.h b/src/heap/objects-visiting-inl.h
index 857fa7c0a622b2394c938b79492816159a144d27..58afeae0167dd7aedbdbbc70ff6b3b6d9fb579f8 100644
--- a/src/heap/objects-visiting-inl.h
+++ b/src/heap/objects-visiting-inl.h
@@ -262,7 +262,8 @@ void StaticMarkingVisitor<StaticVisitor>::VisitCodeTarget(Heap* heap,
   // when they might be keeping a Context alive, or when the heap is about
   // to be serialized.
   if (FLAG_cleanup_code_caches_at_gc && target->is_inline_cache_stub() &&
-      !target->is_call_stub() && heap->isolate()->serializer_enabled()) {
+      !target->is_call_stub() && (heap->isolate()->serializer_enabled() ||
+                                  target->ic_age() != heap->global_ic_age())) {
     ICUtility::Clear(heap->isolate(), rinfo->pc(),
                      rinfo->host()->constant_pool());
     target = Code::GetCodeFromTargetAddress(rinfo->target_address());