write buffer before running :Neomake

[wizzup]

To be able to ghcmod/hlint with single ,hc/,hl command without having to :w to write the buffer first.

[begriffs]

Hm, I'm worried that this might cause surprises. If someone believes that they can check the syntax of an unsaved buffer and it causes the file to be changed it might be worse than just failing to check. Can you remind me what the existing behavior is? Does it provide a clear message saying to save the file first?

[wizzup]

Is there a way to check without saving first?

Maybe I stupidly missed something, when I want to run ,hc/,hl vim will give me warning that buffer is not saved and do nothing.

This change is the only solution I know to be able to run ghcmod/hlint within vim.

[begriffs]

I think you do have to save the file before ghc-mod will work. I usually save manually every so often and then use ghc-mod on the saved file. I guess it's kind of annoying but I got used to it. Doing an auto file save during linting seems unexpected, like I would be surprised if an IDE did that. Thoughts?

[wizzup]

I do understand your point. Will close and this PR then.