tree 55c0a6a86b759072810681e66121b14b2ae2b8e0
parent b080e7c97a879eb803c725621b3993cbe994d19d
author Mike Fairhurst <mfairhurst@google.com> 1559608584 +0000
committer Mike Fairhurst <mfairhurst@google.com> 1559608584 +0000

Promote parameter of == to nullable when invoked.

This is required because otherwise

Object() == null

requires the type signature of Object.operator==(Object o) to be
changed to Object.operator==(Object? o). Which I don't think is the
behavior we want.

Confirmation that this CL is correct has been sent to the language
team. I recommend we land, which will unblock my subtyping CL, and
roll back/readdress later if need be.

Change-Id: I498f9870e7128b2cac3012fff0cb1ab50fcc8df7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104344
Commit-Queue: Mike Fairhurst <mfairhurst@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>