Erik Ernst 4fd04044fb Adjusted circularity prevention rule for type variable subtyping ... We noted in issue https://github.com/dart-lang/sdk/issues/33709 that the language specification prevents usage of `Null` as the bound of a type variable, because that makes the bound a subtype of the type variable itself (which is otherwise a symptom of having a cyclic declaration like `X extends X`). This CL adjusts the wording such that it will be possible to use `Null` (or whatever the denoteable bottom type is called) as a bound. Change-Id: I46a5ce6055f3af322a6b93ac38ca2829ce23a26c Reviewed-on: https://dart-review.googlesource.com/63420 Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>		2018-07-03 10:55:50 +00:00
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language	Adjusted circularity prevention rule for type variable subtyping	2018-07-03 10:55:50 +00:00
newsletter	Newsletter 2017-11-24.	2017-11-24 16:27:00 +00:00