#load error Metadata references are not supported

[qinqoushui]

Describe the bug
use any csx error Metadata references are not supported
To Reproduce
csx

#r "nuget: RazorEngineCore, 2023.11.2"

//https://github.com/adoconnection/RazorEngineCore

using RazorEngineCore;

IRazorEngine razor  = new RazorEngine();

when a use in another csx and run ,error

#r "nuget: RazorEngineCore, 2023.11.2" 
#r "nuget:Newtonsoft.Json/13.0.3"
#load "./comm/RazorCore.csx"

using Microsoft.AspNetCore.Razor.Language.Extensions;
using Newtonsoft.Json.Linq;
using RazorEngineCore;

 
Console.WriteLine("aa");

Expected behavior

Version

• OS:
• Build (or commit ID if built from source):

[qinqoushui]

a temporary situation,edit ExecutionHost.cs

 private   SyntaxTree ParseCode(string code, CSharpParseOptions parseOptions)
 {
     foreach (var f in CodeParsers)
     {
         code = f.Invoke(code);
     }
...
}
//#load csx出现源数据引用问题，临时 直接将文件合并到代码中，并替换掉内容
CodeParsers.Add(s =>
{
    //#load "path"
    Regex reg = new Regex(@$"//#load\s*\""(?<f>.*)\""\s*", RegexOptions.Multiline);
    while (reg.IsMatch(s))
    {
        var m = reg.Match(s);
        string f = m.Groups["f"].Value.Trim().Replace("/", "\\").Trim();
        string fileName = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(_parameters.ScriptFileName)!, f));
        string output = "";
        if (File.Exists(fileName))
        {
            output = File.ReadAllText(fileName);
        }
        s = string.Format(null, "{0}{1}{2}", s.Substring(0, m.Index), output, s.Substring(m.Index + m.Length));
    }
    //调整using和#r到最前面
    reg = new Regex(@"^(?:#r\s+""[^""]*""|using\s+\w+(?:\.\w+)*;)", RegexOptions.Multiline);
    MatchCollection ms = reg.Matches(s);
    if (ms != null)
    {
        string usr = string.Join("\r\n", ms.Where(r => r.Value!.StartsWith("#r")).Select(r => r.Value).Distinct().ToArray());
        string us = string.Join("\r\n", ms.Where(r => !r.Value!.StartsWith("#r")).Select(r => r.Value).Distinct().ToArray());
        s = string.Join("\r\n", usr, us, reg.Replace(s, ""));
    }

    return s;

});