syntax_data: {"ast_node_type":"variable","tokens":[{"end":93,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                                     let field_name = disambiguated_field.data.get_opt_name();
context_before:                                         self.tcx.def_key(field_def.did).disambiguated_data;
context_after:                                     self.push_disambiguator(