Inlining Wiki Page

[Matthew Pickering]

Dear Devs,

I've spent the last day looking at the inliner. In doing so I updated
the wiki page about inlining to be a lot more useful to other people
wanting to understand the intricacies and problems.

https://ghc.haskell.org/trac/ghc/wiki/Inlining

This looks like the perfect place for a newcomer to start working on
GHC. The inliner is quite well contained, there are lots of open
tickets with well-specified aims and lots of investigatory work to be
done.

So the purpose of this email is:

1. Please tag any tickets relevant to inlining/specialisation with "Inlining"
2. Any newcomers keen to get involved should read the wiki page and
see if they can tackle one of the tickets there.

Matt