{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"InlineAsmRegOrRegClass::Reg(reg)"}]}
                    InlineAsmRegOrRegClass::Reg(reg) => {
                let lower_reg = |&reg: &_| match reg {
                        asm::InlineAsmRegOrRegClass::Reg(if let Some(asm_arch) = asm_arch {