{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"hir::GenericParamSource::Binder"}]}
                        hir::GenericParamSource::Binder => {
                        hir::GenericParamSource::Generics => true,
                            self.dcx().emit_err(errors::GenericParamDefaultInBinder {