tree e5d565c979df7ed46f913caa88cc97c32aab34fe
parent 0400593d1c47d0c148ab1fd81591c3e6a57c7044
author Paul Berry <paulberry@google.com> 1561380674 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1561380674 +0000

Migration: propagate nullability inference through override relationships: return types.

Parameter types will be handled in a follow-up CL.

Change-Id: I71862fa6cf27aeede24bef60c096f631f6d8f60d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/107100
Reviewed-by: Dan Rubel <danrubel@google.com>