[AOT] Add safe route value overloads to `Results` and `TypeResults`

[JamesNK]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

#46082 annotates Microsoft.AspNetCore.Http.Results for trimming and AOT.

The route result methods have object parameters that are turned into RouteValuesDictionary. This is done with reflection and isn't safe with trimming.

Describe the solution you'd like

A couple of options:

• Add overloads that take RouteValuesDictionary. This is what we do with LinkGenerator and in other places.
• Add generic overloads with DAM attribute to keep everything.
  • Experiments show that this could be a source-breaking change.
  • Also, DAM attribute won't work with polymorphism. Reflection uses the type of the instance, while the DAM attribute won't preserve properties if the reference is typed as something else. e.g. a Person instance could be passed to the method as object, so Person properties aren't preserved.

Additional context

No response

[captainsafia]

Triage: Need an API review template for this:

Add overloads that take RouteValuesDictionary. This is what we do with LinkGenerator and in other places.