{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"InlineAsmRegClass::CSKY(CSKYInlineAsmRegClass::freg)"}]}
        InlineAsmRegClass::CSKY(CSKYInlineAsmRegClass::freg) => "f",
        InlineAsmRegClass::CSKY(CSKYInlineAsmRegClass::reg) => "r",
        InlineAsmRegClass::Mips(MipsInlineAsmRegClass::reg) => "d", // more specific than "r"