{"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"//"}]}
            // FIXME: maybe wrong?
            chalk_ir::VariableKind::Ty(_) => table.new_type_var().cast(Interner),
            chalk_ir::VariableKind::Lifetime => table.new_type_var().cast(Interner),