Added a compileToCore function to the GHC API that takes a
  session, module, and filename, and returns a list of Core
  bindings if successful. This is just a first try and could
  probably be improved (for example, there's probably a way to
  get the filename from the module so that it doesn't have to 
  be passed in, I just don't see it offhand.)

Make it so that the documentation ends up where Cabal expects it to be
on Windows (prep-bin-dist-mingw used to move it).

Fixes test failures print017 and print024

Fixes Trac #1425.  The printer for types doesn't know about fixities.
(It could be educated to know, but it doesn't at the moment.)  So it
treats all infix tycons as of precedence less than application and function
arrrow.

I took a slight shortcut and reused function-arrow prededence, so I think
you may get
	T -> T :% T
meaning
	T -> (T :% T)

If that becomes a problem we can fix it.

Fixes Trac #1272

`y' in the error message
    `x' is not a (visible) method of class `y'
had gone missing.

Stage1 no longer supports hpc (-fhpc is ignored)

We now assume that each configure option is quoted with '', and thus
replace " '" with " --configure-option='".

not compiler/ghc-inplace, which is a symlink.

f () = do { x :: Bool <- return True; ... }

For some reason the production for 'pat' required 'infixexp' on the
LHS of a do-notation binding.  This patch makes it an 'exp', which 
thereby allows an expression with a type sig.

Happily, there are no new shift-reduce errors, so I don't think this
will break anything else.