am 8576132a: AI 150393: edit the reference\'s navtree highlighting logic to handle intl/ directories   BUG=1790234

Merge commit '8576132a38f4242c5f5da3133e832525a70766e6'

* commit '8576132a38f4242c5f5da3133e832525a70766e6':
  AI 150393: edit the reference's navtree highlighting logic to handle intl/ directories