syntax_data: {"ast_node_type":"variable","tokens":[{"end":45,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let local_scope = self.local_scope();
context_before:     pub(crate) fn local_temp_lifetime(&self) -> TempLifetime {
context_after:         TempLifetime { temp_lifetime: Some(local_scope), backwards_incompatible: None }