Merge "Change hash set to use noexcept" into nyc-dev
am: e4e3ae6

* commit 'e4e3ae671aa61ecd200ec7ac06a1d9fb9b4b0e2e':
  Change hash set to use noexcept

Change-Id: I33d4a2a101613d5488c3f494c1f755c1ff794351