@Override
 public VirtualFile[] getIncludedFiles(VirtualFile file, boolean compileTimeOnly) {
   if (file instanceof VirtualFileWithId) {
     return myIncludedHolder.getAllFiles(file, compileTimeOnly);
   } else {
     return VirtualFile.EMPTY_ARRAY;
   }
 }
 @Override
 public VirtualFile[] getIncludingFiles(VirtualFile file, boolean compileTimeOnly) {
   return myIncludingHolder.getAllFiles(file, compileTimeOnly);
 }