Alexander Markov 8ef90b8641 [benchmarks] Remove expensive Iterable.cast from NNBD version of ListCopy benchmark ... Dart 2 version of this benchmark doesn't have this call. Dart 3 (NNBD) is more strict and allows implicit casts only if casting from dynamic, so it highlights places where types are incompatible. However, Iterable.cast<int>() has a high overhead and it doesn't look like a right way to suppress static type check in this case, as it creates a new Iterable which would additionally cast each element. Simple 'input as dynamic' cast is enough in this case and reflects what was happening in Dart 2 case when types are incompatible. Fixes https://github.com/dart-lang/sdk/issues/42506 Change-Id: I8d83796a53b53e6f567f533f3d5369cd29f6ad97 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152700 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Régis Crelier <regis@google.com> Reviewed-by: William Hesse <whesse@google.com>		2020-06-26 22:51:08 +00:00
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ListCopy.dart	[benchmarks] Remove expensive Iterable.cast from NNBD version of ListCopy benchmark	2020-06-26 22:51:08 +00:00