updates for 3.02.

Add note about unfolding policy.

Back out Sigbjorn's workaround for now: it broke when compiling
SocketPrim.lhs.

Socket.hs needs -syslib posix due to cross-module inlinings.

bump:	uNFOLDING_USE_THRESHOLD  	to 8
	uNFOLDING_CON_DISCOUNT_WEIGHT  	to 3

remove stray export.

sparc-sun-solaris2 uses .LLC<n> to refer to local string constants.

Workaround for problem/bug in OccurAnal

Added comment on the vagaries of combining runProcess and lazy file I/O

unsafeInterleaveIO: handle I/O failure a little bit more gracefully

fixup problem with '.' at the front of a local label.

add some stuff.

- compile PrelMain with -fno-prune-tydecls for now: otherwise the
  IO constructor gets thrown away for some bizarre reason.

Profiling w/ splitting appears to produce reasonably sizes libraries
now: turn splitting back on by default.

Miraculously, the same bug exists on sparc-sun-solaris2.

only strip libraries if $(StripLibraries) eq "YES"

Fix splitting on i386-unknwon-linux: string constants were being
duplicated in each object, leading to large increases in binary
sizes.

- remove $opt_UnfoldingUseThreshold, it's a per-compilation flag now
  (not per-simplification)

- pass through all -funfolding-.* flags, so we can get at the rest

- add unsafeCoerce#

Weed out #\!, even if they do look like cpp droppings

Fix kind error in TcIfaceSig for specialisations

fdToHandle: use openFd

- closeFile: make sure that (FILE*)s pointing to non-regular,
  unlocked files (sockets, FDs etc.) are closed.
- new function: openFd, which implements process local file locking
  for files that are initially opened by the Posix Fd-based ops before
  being converted into a Haskell handle by Posix.fdToHandle

- add *.hc to MOSTLY_CLEAN_FILES.

- remove *.hc from MOSTLY_CLEAN_FILES.

hscpp no longer supports -genSPECS

Removed -genSPECS magic (no longer used.)

add a specialise pragma and remove some GENERATE_SPECS

- specialise some gratuitously overloaded functions

- add a few SPECIALISE pragmas

Update this file to the version generated by 'autoheader'.  It
shouldn't really be in the repository anyway.

- remove uint, ulong, ullong (we're using nat and lnat now)
- sort entries

Convert floating point literals from interfaces directly to Rationals,
rather than go via Doubles.

Tidied up -accept-output `feature\', should now work better.

Generate proper floating point literals when we know the type is
either Float or Double.

add isFloatTy and isDoubleTy

Add
	PrelGHC.unsafeCoerce# ::  a -> b

Use with care.

move update analyser into -O2 optimisations.

fix to StripLibraries support.

Cleaned up and fixed is*Denormalized buglet