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Previously +RTS -Sstderr -RTS was required to send output to stderr,
but this is the most common usage and I got tired of typing "stderr".
The old default behaviour of sending output to <prog>.stat is now gone
(I don't think we use it anywhere).  

Temporarily we allowed +RTS -S- -RTS to mean stderr; there were
objections to this, so it is now also gone.

gcc 4.3 emits warnings for static inline functions that its heuristics
decided not to inline.  The workaround is to either mark appropriate
functions as "hot" (a new attribute in gcc 4.3), or sometimes to use
"extern inline" instead.

With this fix I can validate with gcc 4.3 on Fedora 9.

It's getting a bit crufty - could probably do with a rewrite.

libraries/Makefile.local now lists those for which we need to pass -w
(currently this is every library).

  This is a fairly substantial rewrite of the Static Argument Transformatoin,
  done by Max Bolingbroke and reviewed and modified by Simon PJ.
  
  * Fix a subtle scoping problem; see Note [Binder type capture]
  * Redo the analysis to use environments
  * Run gentle simlification just before the transformation

That's 1 line of new code and 38 lines of new comments

This may help do a little less recompilation with make (GHC's --make
is unaffected).

Sometimes better than the default copying, enabled by +RTS -w

Similarly for Scav.c/Scav.c-inc.