{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"(Super)"}]}
    (Super)          => { exp!(@kw, Super,      KwSuper) };
    (Struct)         => { exp!(@kw, Struct,     KwStruct) };
    (Trait)          => { exp!(@kw, Trait,      KwTrait) };