Updates on the Win32 front

- If -H is larger than -M, set -M to -H
- Fix a couple of bugs in calcLive().

- Fix a bug in 2-space (-G1) collection
- Calculate an estimate of the number of bytes copied during GC
  for GC stats.

Print time spent collecting each generation.

Integer fixes.

Couple of Integer fixes.

- Fix off-by-one in __encodeFloat;
- Tidy up __encodeDouble a bit.

Tweaks to make docs build cleanly

Fixed waitQSemN bug

Added field 'StgWord stgexpr' to struct StgBCO, to help with debugging
the interpreter.  This field (if nonzero) points into the Hugs heap, at
the STG tree from which the BCO was derived.

Some test updates.

Fix negate (toInteger (minBound :: Int)).

Hack around a couple of explicit uses of the Integer rep.

Eliminate an unnecessary pattern match on J#.

Allow completely unbound tyvars of non-type kind

Added test that caused 3.03 and 4.01 to enter a blackhole

Allow -f flag to override existing symlink tree.

Make decoding of RtsFlags.DebugFlags work on big-endian architectures.

Add two new operations to StgPrimFloat.c:

	__int_encodeFloat
	__int_encodeDouble

for encoding floats/doubles from small integers.  This avoids having
to convert small integers to large ones before an encodeFloat
operation, and fixes the two cases of slowdown in nofib after the
small integer changes.

Also:
	- remove encodeFloat and decodeFloat as primops
	- use foreign import for encode{Float,Double} and
	  the various isNaN etc. ccalls in PrelNumExtra.

- Fix typo in description of -M
- Add doc line for -H

Reinstate specialisations for fromIntegral and realToFrac

Add z-encodings for ^ and %

typo

Fix a couple of uninitialized data reads.

Fast Integers.  The rep. of Integers is now

	data Integer = S# Int#
		     | J# Int# ByteArray#

- several new primops added for overflow-detecting arithmetic
- negateInteger# removed; it can be done directly
- integer_0, integer_1 etc. removed.
- the compiler now uses S# where it previously used int2Integer.
- the compiler generates small integers for -2^32 .. 2^32-1, instead
  of -2^29 .. -2^29-1.

- PrelST.State datatype moved to LazyST (its only use).
- some library code (in Time.lhs) still needs cleaning up, it depends
  on the Integer rep.

Be slightly more conservative about allocation area sizing with -H.

Document __HASKELL98__

Define __HASKELL98__

Perl regex tweak, take 55

Reinstate finalizer changes.

Sigh, backout finalizer changes for 4.02 pl1.

Empty export list regression test

warnUnusedGroup: be friendlier to -fwarn-unused-matches users

findAndReadIface: use decoded module name

wibble^2

wibble

Allow empty export lists again

Add pointer to docs on scoped type variables.
Slide tag for 4.02 patchlevel 1.

we're at patchlevel 1.

eliminate warnings about nested comments.