{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"InlineAsmRegClass::Hexagon(HexagonInlineAsmRegClass::preg)"}]}
        InlineAsmRegClass::Hexagon(HexagonInlineAsmRegClass::preg) => {
        InlineAsmRegClass::Hexagon(HexagonInlineAsmRegClass::reg) => "r",
            unreachable!("clobber-only")