vm-service: Include bytecode with _RegExp objects.

runtime/vm/object_service.cc

Index: runtime/vm/object_service.cc
diff --git a/runtime/vm/object_service.cc b/runtime/vm/object_service.cc
index d93391fcf79fdecfb4ae888aa506f0e5c53c4fb0..90f9e1d67b48d7c170bd2a23efb5103d5c017284 100644
--- a/runtime/vm/object_service.cc
+++ b/runtime/vm/object_service.cc
@@ -1542,6 +1542,12 @@ void RegExp::PrintJSONImpl(JSONStream* stream, bool ref) const {
   jsobj.AddProperty("_externalOneByteFunction", func);
   func = function(kExternalTwoByteStringCid);
   jsobj.AddProperty("_externalTwoByteFunction", func);
+
+  TypedData& bc = TypedData::Handle();
+  bc = bytecode(true);
+  jsobj.AddProperty("_oneByteBytecode", bc);
+  bc = bytecode(false);
+  jsobj.AddProperty("_twoByteBytecode", bc);
 }