b0b06bff31
Reason for revert: it was a breaking change to the analyzer public API.
There were two breakages:
- A @required `languageVersion` parameter was added to
AstFactory.compilationUnit, which is part of the officially
supported analyzer public API.
- A @required `languageVersion` parameter was added to the Parser
constructor, which is not part of the officially supported analyzer
public API, but is part of its de facto public API due to the fact
that it is used by dart_style.
This reverts commit ce26dfda7d.
Change-Id: I507103ea6f6ffabf915d6f56e9f24454725c3930
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136851
Reviewed-by: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>