Sometimes named hooks inspection will seemingly fail the first time then work the second time. (e.g. using a DEV build of Facebook.com, the `<CometTheme>` component currently does this).

I _think_ this might indicate a timeout during inspection? (So the retry is fast because everything is cached.)
if (typeof atob === 'function') {
    return atob(encoded);
  } else if (
    typeof Buffer !== 'undefined' &&
    Buffer !== null &&
    typeof Buffer.from === 'function'
  ) {
    return Buffer.from(encoded, 'base64');
  } else {
    throw Error('Cannot decode base64 string');
  }
}
function extractAndLoadSourceMaps(
  locationKeyToHookSourceData: Map<string, HookSourceData>,
): Promise<*> {
  
  
  
  if (!__TEST__) {