tree b2ea136ff1ed67e1adcc9a988091a5e4b10b808a
parent d06c7b7c89451ab28ff3bc87abffda311c7d411c
author Paul Berry <paulberry@google.com> 1557260118 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1557260118 +0000

Stop using ConstraintVariable.always to represent the nullability of `dynamic`.

This is a necessary part of reworking nullability migration to stop
using constraint variables entirely.

Change-Id: If6c347c16882edfc2e8bdbeac761e09d8256c9bb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/101622
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>