{"ast_node_type":"variable","tokens":[{"end":31,"kind":"keyword","start":0,"text":"let"}]}
                    let in_ty =
                hir::InlineAsmOperand::SplitInOut { reg, late: _, in_expr, out_expr } => {
                        self.check_asm_operand_type(idx, reg, in_expr, asm.template, true, None);