Do not serialize stack limits.

src/serialize.h

Index: src/serialize.h
diff --git a/src/serialize.h b/src/serialize.h
index 9d6685be0e6579e468fb5a0ec1efc77b279af0cb..15d936979083e7f4663a249be4a35c685e8857b0 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -573,6 +573,10 @@ class Serializer : public SerializerDeserializer {
 
   int SpaceAreaSize(int space);
 
+  // Some roots should not be serialized, because their actual value depends on
+  // absolute addresses and they are reset after deserialization, anyway.
+  bool ShouldBeSkipped(Object** current);
+
   Isolate* isolate_;
   // Keep track of the fullness of each space in order to generate
   // relative addresses for back references.