code: function resolveFileReference(url, file) {
  	const {schema} = file;
  
  	// Remove any hash from the URL, since this URL represents the WHOLE file, not a fragment of it
  	url = jsonSchemaStripHash(url);
  
  	// Resolve the new file's absolute URL
  	return schema.plugins.resolveURL({from: file.url, to: url});
  }
docs: Resolves the given JSON Reference URL against the specified file, and adds a new {@link File}
  object to the schema if necessary.
  
  @param {string} url - The JSON Reference URL (may be absolute or relative)
  @param {File} file - The file that the JSON Reference is in