tree 188d7453112a8aef79c9690b64a0b1820779fc24
parent 250d931eccf12709cfa51fd3fcb6d2c1682b9825
author Dan Rubel <danrubel@google.com> 1555535991 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1555535991 +0000

forward "required" modifier to parser listeners

... and have each report an error by default

Change-Id: If818a7bb207becbed95a97890632a1803917d285
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99720
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>