5478c381db
Rationale: Using constant, small collections inside subscripts avoids growing collections too much due to allocating new elements for every literal. This also allows using non-flat data structures again in our nightly testing. https://github.com/dart-lang/sdk/issues/38710 Change-Id: If4bdc72f88f8c7d181709e829d35105a54cf8889 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/122423 Commit-Queue: Aart Bik <ajcbik@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com>