Incomplete pattern warnings are not highlighted

[elldritch]

When I compile code with an incomplete pattern using -fwarn-incomplete-patterns, I see the incomplete pattern warning in my GHC output. I do not see a corresponding highlight for the incomplete pattern in the source code. I discovered this in the VS Code extension, although this appears to also occur in the Emacs extension (so I think it's an LSP rather than extension bug).

[ndmitchell]

The root cause is https://github.com/digital-asset/ghcide/issues/107

I suggest this deserves an entry on the HLS FAQ, as it does keep coming up.

[alanz]

Until such time as we fix it, somehow. I think via managing scheduling.

[jneira]

As commented in #96 the ghcide issue is https://github.com/haskell/ghcide/issues/107 and it was closed by haskell/ghcide#836 son only left bump the ghcide submodule to include it: #463

[jneira]

It will be close when #526 is resolved

[jneira]

We are using the ghcide version with the fix, @liftM feel free to reopen if it is not the case (not that you should use master until 0.5 version is not released)