syntax_data: {"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let PlaceBase::Local(l) = self.scrutinee_base
context_before:     fn visit_binding(&mut self, Binding { source, .. }: &Binding<'tcx>) {
context_after:             && l != source.local