Daco Harkes c3b30df798 [vm/ffi] Deprecate empty Structs ...

The analyzer and CFE now report a warning on subclasses of `Struct`
which have no native fields.

Adapted from https://dart-review.googlesource.com/c/sdk/+/180189 to
only deprecate, but not disallow empty structs.

Rolls `package:ffi` forward to migrate `Utf8` and `Utf16` to `Opaque`
to prevent tests from failing on those generating warnings for empty
structs.

Issue: https://github.com/dart-lang/sdk/issues/43974

TEST=tests/ffi/vmspecific_static_checks_test.dart

Change-Id: Ia364e31da66cb195570c2e2b729d03dd261f28a2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/180361
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

2021-01-22 13:58:09 +00:00

..

base

Migrate _fe_analyzer_shared to null safety.

2020-12-12 03:22:29 +00:00

flow_analysis

Add an implementation of legacy type promotion to _fe_analyzer_shared.

2021-01-16 17:07:23 +00:00

messages

[vm/ffi] Deprecate empty Structs

2021-01-22 13:58:09 +00:00

parser

[parser] Better handling of eof when parsing 'Stream<List<>>'

2021-01-11 09:55:06 +00:00

scanner

Migrate _fe_analyzer_shared to null safety.

2020-12-12 03:22:29 +00:00

sdk

Migrate _fe_analyzer_shared to null safety.

2020-12-12 03:22:29 +00:00

testing

Migrate _fe_analyzer_shared to null safety.

2020-12-12 03:22:29 +00:00

util

Fixes for review comments after _fe_analyzer_shared migration

2020-12-14 16:57:58 +00:00