private string NormalizeDebugDocumentPath(string path, string basePath)
{
//var resolver = _compilation.Options.SourceReferenceResolver;
//if (resolver == null)
//{
// return path;
//}
//var key = ValueTuple.Create(path, basePath);
//string normalizedPath;
//if (!_normalizedPathsCache.TryGetValue(key, out normalizedPath))
//{
// normalizedPath = resolver.NormalizePath(path, basePath) ?? path;
// _normalizedPathsCache.TryAdd(key, normalizedPath);
//}
//return normalizedPath;
return path;
}