64b80cd151
With NNBD default List constructor is deprecated. Instead, List.filled constructor is used to create lists of a particular length, so List.filled is now used much more often. This change adds VM-specific specialization for List.filled constructor invocations when they are used to create lists filled with null. Fixes https://github.com/dart-lang/sdk/issues/41104 Change-Id: I050549fd550acb8d62997b2b28c1f1e41ad3e0cc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139952 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>