syntax_data: {"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let coroutine_kind = self.tcx().coroutine_kind(did).unwrap();
context_before:                 write!(self, "{{")?;
context_after:                 let should_print_movability = self.should_print_verbose()