The future non-basic version is to include the following:
* adding missing annotations on nodes
* adding URIs and file offsets to the nodes
* adding nullability markers to types
* stylistic changes
* optimizations
* better surface syntax
* better error messages
Change-Id: If2fc51e4932d9043dd1719b766bd23ff4e0fc1ad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154001
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Dmitry Stefantsov
d6dfbda0d3