tree 3b8ad1cd322a390b12201d267d8729badb0bd79c
parent 0170b8d529a60a18c175dfe187896388621f5768
author Nate Bosch <nbosch@google.com> 1540424055 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1540424055 +0000

Add ArgumentError.checkNotNull utility

In the places where other utilities like `RangeError.checkNotNegative`
are used it reads nicer to call through a similar signature than to
follow a conditional with the utility.

Change-Id: Idd89b2934020fb55e57a22c39773fd7879d1c28f
Reviewed-on: https://dart-review.googlesource.com/c/81287
Commit-Queue: Nate Bosch <nbosch@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>