tree 89788fa1f214f7ae553075cc08e1524edc2af5f5
parent 3e774fba0f48cf19337ace0f1bfcd1f9b23776fe
author Stephen Adams <sra@google.com> 1628541530 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1628541530 +0000

[dart2js/kernel] Fix poor code with nested List.generate

Cloning of InstanceInvocation kernel ast nodes was dropping the
isInvariant and isBoundSafe flags, causing the nested List.generate
expansion to not be as well optimized. `-O3` and `-O4` were 'hiding'
the problem by removing the checks anyway.

Change-Id: Id20f2eb4ef5396691a2dd5cbdd847e2d361a21d0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/209442
Commit-Queue: Stephen Adams <sra@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>