{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"InlineAsmRegClass::S390x(S390xInlineAsmRegClass::areg)"}]}
        InlineAsmRegClass::S390x(S390xInlineAsmRegClass::areg) => {
        InlineAsmRegClass::S390x(S390xInlineAsmRegClass::vreg) => "v",
            unreachable!("clobber-only")