syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"self.kind_ty().to_opt_closure_kind().unwrap()"}]}
source_snippet:         self.kind_ty().to_opt_closure_kind().unwrap()
context_before:     pub fn kind(self) -> ty::ClosureKind {
context_after:     }