{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"span:"}]}
                            span: hir_ty.span,
                        self.dcx().emit_err(errors::AssociatedItemTraitUninferredGenericParams {
                            inferred_sugg: Some(hir_ty.span.with_hi(segment.ident.span.lo())),