tree eff12e68225f31298b5c10bea8d0f2163e42ee84
parent 588b0d12229ea7a7db5ccc418e8d72844f23178c
author danrubel <danrubel@google.com> 1538679104 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1538679104 +0000

Revise class and mixin header recovery

This updates the fasta parser to use the "incorrect" keyword
when "extend" or "on" is used instead of "extends" in a class declaration and
when "extend" or "extends" is used instead of "on" in a mixin declaration.

Change-Id: I6bef3f897e24c3c0100180d2bf9f4d2ec7608eef
Reviewed-on: https://dart-review.googlesource.com/c/78101
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>