{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"Avr(AvrInlineAsmRegClass::reg_ptr)"}]}
            Avr(AvrInlineAsmRegClass::reg_ptr) => "e",
            Avr(AvrInlineAsmRegClass::reg_iw) => "w",
            S390x(S390xInlineAsmRegClass::reg) => "r",