syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"self.locals.iter_enumerated().filter_map(|(l,"}]}
source_snippet:         self.locals.iter_enumerated().filter_map(|(l, &idx)| Some((l, idx?)))
context_before:     ) -> impl DoubleEndedIterator<Item = (Local, MovePathIndex)> {
context_after:     }