How to Reproduce

1. Execute the following command

   /loot give @s loot {pools:[{rolls:1,entries:[{type:"item",name:"stone",functions:[{function:"set_name",entity:"this",name:["test",{selector:"@s"}]}]}]}]}
   

Expected Behaviour

Parse successfully since it's a valid json.

Observed Behaviour

Can't insert TAG_Compound into list of TAG_String