Update error message at Parsers.scala:1901

[ljdelight]

This one is about a 'missing return type' when we can't infer a type. I used tests/neg/i871.scala to verify the change

[ljdelight]

FYI I'm behind at least one PR that will conflict. Noting this since I'm not familiar with the capabilities of the CI

[felixmulder]

So first off, you're correctly stating that if a trait method does not have a return type it needs to be clarified. But why is this? It's an abstract definition; we need to know what it's type is when we implement it somewhere else.

I also have a different nitpick, so the error messages obey a flag called -pagewidth X, where X is the max number of columns that should be printed in the terminal. As such, I would suggest that you split line 408 to be no more than 80 characters (i.e. newline after area).

Good job otherwise, and thanks for cleaning up the trailing whitespace ❤️

[ljdelight]

Thanks for the comments. How does this read?

An abstract declaration must have a return type. For example:
        |
        |trait Shape {
        |  def area: Double // abstract declaration returning a ${"Double"}
        |}

[felixmulder]

Yes, that looks fine. Make the change and this is approved for merge :)

[felixmulder]

Oh and also, second nitpick!

Make your commit message subject line a bit shorter, put the rest in the body - example:

Update error message for missing return type

This one is about...
# Please enter the commit message for your changes...

Cheers!

[felixmulder]

LGTM - a rebase and an update on the errorId and we're good to go :)