Inherited members that inherit their documentation should not appear in search dropdown

[Hixie]

If I search for "computeDryLayout" in Flutter's API docs:

https://master-api.flutter.dev/flutter/search.html?q=computeDryLayout

There's dozens of results, but basically all of them are just redundantly repeating the same content as the first one, because they're just subclasses overriding the method to implement it, and thus inheriting the documentation. If we want to argue that having the list of implementations of this method available is useful, then we should put that list in the documentation for the one they're all inheriting from:

https://master-api.flutter.dev/flutter/rendering/RenderBox/computeDryLayout.html

[jcollins-g]

I like the idea of having overrides displayed on element pages. Alternatively, the search results page could indicate element overrides and the search box could say something like "with 12 overrides..." so you could see the list from there.

[Hixie]

Recent research from the University of Michigan on Flutter API docs is consistent with this issue; specifically, they called out the redundancy in repeating descriptions in the search results.