Currently the type of a static field is only based on the dart type, not
inferred types. This can mean that the type of such field is e.g.
`dynamic`.
Though the return type of the initializer function used the unboxing
information.
=> There was an invariant that if we use `null` to signal uninitialized
in the global, then calling the initializer will also result in a
non-nullable reference type.
=> This was invariant was broken by recent changes to dart2wasm that
take advantage of TFA-inferred unboxing information.
=> We fix this inconsistency by ensuring the wasm global's type is the
same as the initializer function's return type.
Change-Id: I9c27c0b28d2f81f888b4c9afc59dad42af2229ab
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/365825
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
Martin Kustermann
3dfee274cc