hasDeclOrField

fn hasDeclOrField(
    gz: *GenZir,
    scope: *Scope,
    ri: ResultInfo,
    node: Ast.Node.Index,
    lhs_node: Ast.Node.Index,
    rhs_node: Ast.Node.Index,
    tag: Zir.Inst.Tag,
) InnerError!Zir.Inst.Ref {
    const container_type = try typeExpr(gz, scope, lhs_node);
    const name = try comptimeExpr(
        gz,
        scope,
        .{ .rl = .{ .coerced_ty = .slice_const_u8_type } },
        rhs_node,
        if (tag == .has_decl) .decl_name else .field_name,
    );
    const result = try gz.addPlNode(tag, node, Zir.Inst.Bin{
        .lhs = container_type,
        .rhs = name,
    });
    return rvalue(gz, ri, result, node);
}