Fix for default unregisterised builds.

Make use of the $(GhcWithRegisterised) build flag from config.mk.  You
can now get an unregisterised build by *either*

	- setting GhcWithRegisterised to NO in build.mk, or
	- adding 'u' to GhcLibWays.

The former will make all compilations unregisterised, whereas the
latter will require a '-unreg' flag to be passed to the compiler to
get the unregisterised build.

Test for Richard Reid's bug:  syntax C{} for constructing C with all fields set
to bottom.

Allow the syntax C{} for building an unlabelled constructor C and
setting all of C's fields to bottom.  The Haskell report is a bit
vague on whether this is legal, but it turns out to be quite easy to
support.

build Posix before Misc.

Don't rely on bad implementation of 'sum', now that we don't have one
:)

Allow ``...'' as argument of __casm.

Don't chop off the last character of the buffer.

tcrun004 uses existentials, needs -fglasgow-exts.

Forgot 'forall' and 'foreign' as possible variable names.

Oops, forgot that the memory returned from realloc could have moved.

Add tcfail082.stderr

Accept some test changes; add tcfail082, read021

prescript wibble

K&R -> ANSI token pasting (ie, x##y for x/**/y)

- add a test for non-parsing of strict newtype constructor fields
- other small fixes

Missing case in collectTypedPatBinders; Andreas Marth bug report

Add a few SPECIALISE/INLINE pragmas.

- Recognise #-} as the end-of-pragma symbol even when -fglsagow-exts
  is off.  Certain pragmas are Haskell (like {-# OPTIMIZE #-} :-)
  and some aren't, so we're not really Haskell compliant here.

- Fix case-insensitive pragma matching.

Move some code around to reduce the linkage between CgMonad and CgBindery,
and make the .hi-boot-5 file compatible with both 4.02 and 4.03.

Remove debugging trace that sneaked in.

Fix qvarid bug.

Use ClosureInfo.hi-boot instead of ClosureInfo.hi (which might not be
built yet).

Lots of small fixes to ghc/tests

Small fixes, including a significant full-laziness bug in OccurAnal

Update the comment for buildLivenessMask to match reality.

Allow reserving of stack slots for non-pointer data (eg. cost
centres).  This means the previous hacks to keep the stack bitmaps
correct in the presence of cost centres are now unnecessary, and
case-of-case expressions will be compiled properly with profiling on.

Pass -unreg for unregisterized builds.

Fix ifdef INTERPRETER code fragment.

Fix gratuitous duplication of libraries in the linker command line.

- ignore case in pragma names

- add "NOTINLINE" as a possible spelling of "NOINLINE" for the
  grammatically challenged.

Many changes needed to support loading of GHC compiled code.  The main
changes are to parser.y and interface.c to load .hi files and create
appropriate symbol table entries.  Also, interface.c has the
beginnings of and ELF loader/linker in it.

Existential constructors NEVER WORKED!  You were JUST IMAGINING IT!

Existential contexts on datatype declarations.

Use $CC -E instead of gcc.

Make the new file-slurping code work with 3.02.

Omit ugen.

When not profiling,  parse   `_scc_ "string" e'  as `(e)', not just `e'.

Rationale:  scc expressions are defined as extending as far to the
right as possible, and if we simply remove the _scc_ part the parse
looks awfully strange to the renamer which tends to fall over.

Remove ugen; we don't need it anymore.

Comment out some stuff we don't use.