Sam Rawlins
aad9e57674
This reverts commit 885457e1d3.
[analyzer] new warning for nullable '==' parameter type
This rule checks that a parameter to an `operator ==` implementation has
a non-nullable type.
I intentionally did not enforce, in this rule, that the parameter is
exactly `Object`. It is legal to narrow the parameter type to a
different non-nullable type, like `int`. I can't imagine doing it, but
it seems to be unrelated to whether the type should be nullable or not.
Fixes https://github.com/dart-lang/linter/issues/3441
Replaces https://github.com/dart-lang/linter/pull/3923
Change-Id: Ic0be2bfebaf59b0336e9a3a58e5b7f5359eb8646
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/291042
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>