framework: Use a super-parameter in several missed cases

[srawlins]

Work towards dart-lang/sdk#58729

The lint rule will suggest using a super-parameter for a named parameter even if the positional parameters cannot be super-parameters.

[flutter-dashboard]

It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

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[gemini-code-assist]

Code Review

This pull request refactors several class constructors to use super-parameters, a feature introduced in Dart to make forwarding parameters to a super constructor more concise. The changes are applied to _ErrorDiagnostic in assertions.dart, MessageProperty in diagnostics.dart, and _LiveImage in image_cache.dart. The refactoring is done correctly, improving code readability and maintainability without changing functionality. The changes are straightforward and look good.

[justinmc]

LGTM 👍 . I would have thought these cases should already be caught by the linter.