tree 42142a6be3a12f26d2ad6069eb45a4556a8e83cf
parent 6080e546c9075e7465ed3302169546d6752b2678
author Paul Berry <paulberry@google.com> 1557786704 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1557786704 +0000

Move NullabilityGraph into nullability_node.dart.

This will allow NullabilityGraph and NullabilityNode to have shared
access to private data without having to expose it to all other
libraries.

Change-Id: Idbef9a60cdeb273cd5739c45d501370d89b653df
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/102403
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>