Johnni Winther 23d70f6f23 Reland: [cfe] Embed and use allowed experiments in CFE ...

This CL embeds the sdk_nnbd/lib/_internal/allowed_experiments.json
into the CFE and uses this to allow experiments enabled on a
per library basis. The file is embedded through generated code to
avoid reliance on access to the file itself.

A presubmit check is also added to ensure that the json file and
the generated code are in sync.

This work is in preparation for https://github.com/dart-lang/sdk/issues/41538

This was reverted in https://dart-review.googlesource.com/c/sdk/+/149620
because flutter wasn't prepared for auto-enabling nnbd in dart:* libraries.
This has now been fixed in https://github.com/flutter/engine/pull/18714

Closes #42162

Change-Id: I686ed6feaef8ee066b426068fe2a0f5080bf1713
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149588
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>

2020-06-03 08:15:49 +00:00

..

data

[analyzer,cfe,dart2js] Add marker.options files to automate running id tests on all configurations

2020-02-21 08:34:26 +00:00

extensions_test.dart

Reland: [cfe] Embed and use allowed experiments in CFE

2020-06-03 08:15:49 +00:00