{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"self.dcx().emit_err(NeverPatternWithBody"}]}
                self.dcx().emit_err(NeverPatternWithBody { span: body.span });
            } else if let Some(body) = &arm.body {
            } else if let Some(g) = &arm.guard {