Champion "Support extension methods everywhere"

[gafter]

• Proposal added
• Discussed in LDM
• Decision in LDM
• Finalized (done, rejected, inactive)
• Spec'ed

See also dotnet/roslyn#4565
I've labeled this "Proposal Champion" because it has been triaged by the LDM, but we don't actually have a champion at this point.

[TylerBrinkley]

See also dotnet/roslyn#16271

[SomeoneIsWorking]

We decided it would be easier on both programmers and the compiler if we limit the number of places that you have to look for extension methods.

If this is an issue it can be made to accept only private methods for non-static classes.
I wish to be able to build fluent code that will only run inside the class.