Fix #10080: Allow end marker immediately after : at eol

[odersky]

No description provided.

[julienrf]

I have a concern about the second part of the test. That being said, I’m not sure this is a huge issue.

[julienrf]

This one looks confusing to me because I read trait Bar as a complete definition, so there is nothing to end. As I’ve mentioned in the linked issue, to me the “brace-significant” equivalent would be:

trait Bar
}

So, I’m not sure we should support it.

Also, it suggests that we could insert definitions between trait Bar and end Bar, like so:

trait Bar
  def quux: Quux
end Bar

But this would be rejected, right?

[odersky]

Yes, that one would be rejected.

[bishabosha]

if do the following:

package foo

class B:
  // def foo = 23
  end B

I only get a warning that end B is too far to the right, but if I uncomment def foo = 23 then I get the error about misaligned end

[odersky]

I'd like to leave it at that. I am not ready to invest more time in this. If someone has another solution go ahead. Otherwise let's merge this or do nothing at all.