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243413f11b
Fixes https://github.com/flutter/flutter/issues/162577 ### Description - Adds `role` check in `SemanticsNode._isDifferentFromCurrentSemanticAnnotation` function. - Adds `SemanticsNode.debugIsDirty` property to check in tests whether the node is marked as dirty. ## Pre-launch Checklist - [X] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [X] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [X] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [X] I signed the [CLA]. - [X] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [X] I added new tests to check the change I am making, or this PR is [test-exempt]. - [X] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [X] All existing and new tests are passing.