ReifySliceArgInfo

    pub const ReifySliceArgInfo = enum(u16) {
        /// Input element type is `type`.
        /// Output element type is `std.lang.Type.Fn.ParamAttributes`.
        type_to_fn_param_attrs,
        /// Input element type is `[]const u8`.
        /// Output element type is `type`.
        string_to_struct_field_type,
        /// Identical to `string_to_struct_field_type` aside from emitting slightly different error messages.
        string_to_union_field_type,
        /// Input element type is `[]const u8`.
        /// Output element type is `std.lang.Type.Struct.FieldAttributes`.
        string_to_struct_field_attrs,
        /// Input element type is `[]const u8`.
        /// Output element type is `std.lang.Type.Union.FieldAttributes`.
        string_to_union_field_attrs,
    }