Merge CmpNat and CmpSymbol in 7.8

[Iavor Diatchki]

Hi,

based on requests from a couple of people I added a couple of type-level
functions for type nats and type symbols.  Could we get these merged in
7.8?  The relevant commits are:

In GHC:
5e4bdb5fc5e741522cbb787731422da3f12aa398
Implement ordering comparisons for type-level naturals and symbols.


In base:
5edb063688e73ec00fd1f61ac0e8317dd122f44a
Comments only.

c1d3546420ee482bbbd9f15d45a6e8a26304d419
Add functions for comparing type-level Nats and Symbols.

Thanks!
-Iavor
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/ghc-devs/attachments/20140324/7e89b9d7/attachment.html>