syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // with the closure's DefId. Here, we run through that vec of UpvarIds for
context_before:         // indexed closure and we stored in a map called closure_min_captures in TypeckResults
context_after:         // the given closure and use the necessary information to create upvar