- #7595
- #7595 relates to #7350 but does not have the same root cause
- did _not_ revert the src changes in #7350 fix (d995b0418a)
- make non-`[Obsolete]` `ModelAttributes` constructor overload `internal`
- should generally use `static` methods and not any constructor
- change some unit tests to use `[Obsolete]` constructor overloads (with suppressions)
- fix test `ParameterBinderExtensions` to use current `ParameterBinder.BindModelAsync(...)` overload
- found some tests updated `IModelMetadataProvider`, `MvcOptions`, etc. instances but didn't register them in DI
- extend `ModelBindingTestHelper` and `ModelBindingTestContext`
- reorder some tests to use correct `MvcOptions` and `IModelMetadataProvider` everywhere
- fixes above issues
nits:
- take a few VS suggestions
- remove an old comment indended only for PR "Reviewers:"
e0e96ce53b