syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"Some(local_def_id)"}]}
source_snippet:             Some(local_def_id) => local_def_id,
context_before:         match self.as_local() {
context_after:             None => panic!("DefId::expect_local: `{self:?}` isn't local"),