[Blazor] Breaking changes in `IJSRuntime` and `IJSObjectReference`

[MackinnonBuck]

Summary

The IJSRuntime and IJSObjectReference interfaces were recently augmented in .NET 10 with new methods:

• InvokeNewAsync
• GetValueAsync
• SetValueAsync

However, adding new members to interfaces is a breaking change that will cause external implementations to throw a TypeLoadException until they get updated to implement the new members.

Possible solution

Change these new methods to be "default interface methods" and have the default implementation throw an exception.

[BekAllaev]

Hello. Can this be considered as "good first issue" or it requires more skilled developer? If this can be considere as "good first issue" I can take it

[javiercn]

There's some discussion that we are having as part of API review for this before we decide to take any action.

[BekAllaev]

Let me know, please, when you will discuss it. If this issue doesn't require too deep knowledge of current architecture, I would like to take this issue. Thanks in advance @javiercn

[javiercn]

Fixed as part of #61850