Leaf Petersen 19a1393ae7 Address additional comments on nullability ...

Address some post-submit comments on a previous CL, and fix some
unrelated analyzer hints in passing.

BUG=
R=jmesserly@google.com

Review-Url: https://codereview.chromium.org/3007533002 .

2017-08-24 15:37:43 -07:00

..

dartdevc.dart

Address additional comments on nullability

2017-08-24 15:37:43 -07:00