syntax_data: {"ast_node_type":"variable","tokens":[{"end":72,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let place = self.places.push(PlaceInfo::new(decl.ty, None));
context_before:             debug_assert!(self.locals[local].is_none());
context_after:             self.locals[local] = Some(place);