This updates `analyzer_use_new_elements` lint to stop reporting inside
deprecated declarations. So, we can deprecated and prepare for removal.
Apply deprecation dart/analysis/results.dart
Deprecate `ElementDeclarationResult`, add `FragmentDeclarationResult` instead.
Change `getFragmentDeclaration` (not yet published) return type to `FragmentDeclarationResult` to better correspond to the method name.
Rename `getElementDeclaration` from `AnalysisSessionHelper` to
`getFragmentDeclaration`, to better reflect on what it operates.
Change-Id: I2839c9a7e21ed2e5b34035fc8c3ec88fd23df1b5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/412840
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Konstantin Shcheglov
b3ca203e8f