Since https://dart-review.googlesource.com/c/sdk/+/199200/ tree shaker removes annotations in AOT mode. Flutter toString() removal transformation currently runs after tree shaking but relies on @keepToString annotations which are already removed by that moment.

We should consider running toString removal before tree shaking to make sure it still sees annotations.

Internal bug: b/187962467