* Make it so that recursive newtype declarations don't send
  GHC into an infinite loop.

	newtype T = MkT T

  This happened because Type.repType looked throught newtypes,
  and that never stopped!  Now TcTyDecls.mkNewTyConRep does the job
  more carefully, and the result is cached in the TyCon itself.


* Improve the handling of type signatures & pragmas.  Previously a
  mis-placed (say) SPECIALISE instance pragmas could be silently
  ignored.


Both these changes involved moving quite a lot of stuff between modules.

Initial revision

Fixing a couple of problems with Quantified identifiers.

(1) The string building routine for Qid's was not using
    the new abstraction for showing names. The old abstraction
    worked most of the time in the new system, so was only
    getting tickled sometimes.
(2) Fixing the local module that top level expressions
    evaluate in. By importing quantified Prelude,
    this allows top level expressions like Prelude.take

And a trivial Makefile change.

Numerous changes in the RTS to get GUM-4.06 working (currently works with
parfib-ish programs). Most changes are isolated in the rts/parallel dir.

rts/parallel/:
  The most important changes are a rewrite of the (un-)packing code (Pack.c)
  and changes in LAGA, GALA table operations (Global.c) expecially in
  rebuilding the tables during GC.

rts/:
  Minor changes in Schedule.c, GC.c (interface to par specific root marking
  and evacuation), and lots of additions to Sanity.c (surprise ;-)
  Main.c change for startup: I use a new function rts_evalNothing to
  start non-main-PEs in a PAR || SMP setup (RtsAPI.c)

includes/:
  Updated GranSim macros in PrimOps.h.

lib/std:
  Few changes in PrelHandle.c etc replacing ForeignObj by Addr in a PAR
  setup (we still don't support ForeignObjs or WeakPtrs in GUM).
  Typically use
    #define FILE_OBJECT	    Addr
  when dealing with files.

hslibs/lang/:
  Same as above (in Foreign(Obj).lhs, Weak.lhs, IOExts.lhs etc).

-- HWL

* Remove the unnecessary CPR parameter to mkUnfolding and friends

* Make sure that even trivial wrappers have a __inline__
  (this was causing lots of 'substWorker' DEBUG messages)

* Nuke demand info when the unfolding is a value
  (see notes with IdInfo.setUnfoldingInfo)

* Add an update-in-place test to the 'interesting context'
  predicate in SimplUtils.

Support AP_UPDs/PAPs larger than a block in size.  It turned out not
to be too hard to do this.  This fixes George Russell's bug ("hsc:
fatal error: scavenge: stack frame").

Add an ASSERT to catch a known bug: when allocating an AP_UPD in
raiseAsync, if the object is larger than a block in size then all
sorts of things can go wrong.

Filter out PrelHugs in all ways for building DLLs.

Added subl clause to epilogue munging.

Added rules for building GMP as a DLL. N.B. GMP is not actually used
yet as a DLL; this remains to be added to the build system.

Removed __init_PrelMain, which shouldn't be in here.

Document hoisting foralls

update for extra parameter to startupHaskell().

HEADS UP!!!

change the type of startupHaskell():

   void startupHaskell  ( int argc, char *argv[], void *init_root );

the extra parameter is a pointer to the initialisation function for
the root module in the program.  eg., Main.c now passes __init_Main for
this parameter.  It can be left as NULL if there is no root module.

This interface may need to be revised, since in some circumstances
there may be more than one "root module".

Sigbjorn: H/Direct will need some changes to stay in sync here.

Remove this file, it moved to ghc/rts.  (sigh, I thought I removed it
already, but apparently not).

Replace _static_closures with _closures.

Wibble One.

Fixing bug with import privileged clashing with import hidden.
This caused a rather nasty name-leak, where catch from the prelude
was being given the type of catch from Exceptions.

Now, when you use import privileged Prelude (...) you also
need to do import Prelude, allowing you the option of
import Prelude hiding (...).

A bucket load of wibbles will follow in various libraries,
implementing this restriction.

freezeDoubleArray ==> freezeByteArray

freeze<blah>Array ==> freezeByteArray

The new itimer stuff is NON_POSIX_SOURCE, and further protect it with
HAVE_SETITIMER.  Fixes building on Solaris again.

Remove extra \end{code}

Don't use "ccall" as a variable name; it confuses the interface file
parser in 4.06.  This bug has been fixed in 4.07.

Replaced $(HC_OPTS) in mkdependhs rule whence I had inadvertently removed
it along with the odir filter in which it sat.

Used new SplitObjs setting, and removed patsubst hack (no longer needed,
thank goodness).

Added SplitObjs for when -split-objs is being used. Removed -split-objs and
-odir from GhcLibHcOpts. -odir shouldn't be needed any more in any case.

Changed order of recursive makes so that recursive make happens before make
in the current directory. This helps when building hslibs as DLLs, where
the cbits DLLs need to be made before the main DLLs.

Added SplitObjs and removed -split-objs from GhcLibHcOpts.

Restoring Hugs ability to accept the -98/+98 and -h<heap> options.

Making STG Hugs compile again after the recent RTS checking.

Replace freeze{Char,Int,Word,Float,Double}Array with freezeByteArray
(using sizeofByteArray and a foreign import of C's memcpy()).

remove redundant import.

We weren't releasing the memory associated with dead file objects
(including the possibly large buffer).  This commit fixes that.

ANSIfy function defn

Fix a bug in import listing in interface files that meant we lost track of
interface files.  This fixes the problem that led Sven to add lots of
import PprType() decls.  I've removed them all again!

a) Move Unfolding and UnfoldingGuidance to CoreSyn
   As a result, remove several SOURCE imports
   Shrink CoreSyn.hi-boot considerably
   Delete CoreUnfold.hi-boot altogether

b) Add CoreUtils.exprIsConApp_maybe
   Use in PrelRules to fix a bug in the dataToTag rule

c) Fix boolean polarity error in Simplify.lhs

Improve the error messages given when a definition isn't polymorphic enough.
In paticular, for this program:

    let v = runST (newSTRef True)
    in
    runST (readSTRef v)

we get the message

    Inferred type is less polymorphic than expected
	Quantified type variable `s' escapes
	It is reachable from the type variable(s) `a'
	  which are free in the signature
    Signature type:     forall s. ST s a
    Type to generalise: ST s (STRef s Bool)
    When checking an expression type signature
    In the first argument of `runST', namely `(newSTRef True)'
    In the right-hand side of a pattern binding: runST (newSTRef True)

Fix sig for guard in module header

Don't treat 'ccall' and 'stdcall' as reserved words.  This fixes
another problem with bootstrapping.

rearrange tokens to be in roughly the same order as everywhere else.

Adding a bunch of `import PprType ()' to make 4.07 compile itself.
Strangely enough, compilation with 4.06 worked without these, so
this is probably only fighting the symptoms of something deeper,
and somebody should have a look at it. But for now, I simply need
a bootstrapping 4.07...