{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_byte)"}]}
        InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_byte) => None,
        },
        InlineAsmRegClass::X86(reg @ X86InlineAsmRegClass::xmm_reg)