message: Fix Watchman on windows
  Watchman returns `/` separated paths, but `jest-haste-map` uses `path.sep` which on windows equals `\`.
diff: @@ -97,7 +97,7 @@ module.exports = function watchmanCrawl(
  }
  pairs.forEach(pair => {
  - const root = pair.root;
  + const root = normalizePathSep(pair.root);
  const response = pair.response;
  if ('warning' in response) {
  console.warn('watchman warning: ', response.warning);
  