{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"self.dcx().emit_err(if"}]}
        self.dcx().emit_err(if changed_any_binding {
    fn ban_mut_general_pat(&self, lo: Span, pat: &Pat, changed_any_binding: bool) {
            InvalidMutInPattern::NestedIdent {