Chris Bracken 100be23a34
Improve AOT snapshot input verification + cleanup (#17136)
Bugfix: Moves AOT snapshot input verification past where the last input
is added to the inputs list.

Cleanup:
* Extracts _isValidAotPlatform method.
* Moves non-platform-specific logic to the top.
* Moves variable declaration closer to first use, and inlines to a
  narrower scope where possible.
2018-04-30 16:47:03 -07:00
..