Merge all eltlast/ files into formula.hh (except automatop.hh).

Merge all ltlast/ files into formula.hh.  The forward declaration of visitor was causing error messages too cryptic for users.

2008-06-02  Guillaume SADEGH  <sadegh@lrde.epita.fr>

        * iface/nips/nipstest/Makefile.am, iface/nips/Makefile.am,
        configure.ac, iface/nips/nipstest/emptiness.test,
        iface/nips/nipstest/dotty.test: Test suite for the NipsVM
        front-end.
        * iface/nips/emptiness_check.cc, iface/nips/dottynips.cc:
        `catch'
        don't throw anymore an exception, but exit with 1.
        * iface/nips/common.cc, iface/nips/nips.cc (nips_interface):
        Change messages of nips_exception.

	* iface/gspn/Makefile.am (gspndir): Install in spot/iface/gspn/.
	* iface/nips/Makefile.am (nipsdir): Install in spot/iface/nips/.

   * Makefile.am, nips.cc, nips.hh: Fix the previous patch.

        * iface/nips/nips.cc (state_nips): Fix the previous patch.

2008-05-29  Guillaume SADEGH  <sadegh@lrde.epita.fr>

	* iface/nips/nips.cc, iface/nips/nips.hh, iface/nips/common.cc,
	iface/nips/common.hh, iface/nips/Makefile.am: TGBA implementation
	with the NIPS library.
	* iface/nips/emptiness_check.cc: Emptiness check on a Promela
	interface.
	* iface/nips/dottynips.cc: Dot printer on the NIPS interface.
	* iface/nips/compile.sh: Add. Wrapper around nips compiler to
	compile Promela to NIPS bytecode.
	* iface/nips/nips_vm,iface/nips/nips_vm/bytecode.h,
	iface/nips/nips_vm/ChangeLog, iface/nips/nips_vm/COPYING,
	iface/nips/nips_vm/hashtab.c, iface/nips/nips_vm/hashtab.h,
	iface/nips/nips_vm/INSTALL, iface/nips/nips_vm/instr.c,
	iface/nips/nips_vm/instr.h, iface/nips/nips_vm/instr_step.c,
	iface/nips/nips_vm/instr_step.h,
	iface/nips/nips_vm/instr_tools.c,
	iface/nips/nips_vm/instr_tools.h,
	iface/nips/nips_vm/instr_wrap.c,
	iface/nips/nips_vm/instr_wrap.h,
	iface/nips/nips_vm/interactive.c,
	iface/nips/nips_vm/interactive.h, iface/nips/nips_vm/main.c,
	iface/nips/nips_vm/Makefile, iface/nips/nips_vm/Makefile.am,
	iface/nips/nips_vm/nips_asm_help.pl,
	iface/nips/nips_vm/nips_asm_instr.pl,
	iface/nips/nips_vm/nips_asm.pl,
	iface/nips/nips_vm/nips_disasm.pl, iface/nips/nips_vm/nipsvm.c,
	iface/nips/nips_vm/nipsvm.h, iface/nips/nips_vm/README,
	iface/nips/nips_vm/rt_err.c, iface/nips/nips_vm/rt_err.h,
	iface/nips/nips_vm/search.c, iface/nips/nips_vm/search.h,
	iface/nips/nips_vm/split.c, iface/nips/nips_vm/split.h,
	iface/nips/nips_vm/state.c, iface/nips/nips_vm/state.h,
	iface/nips/nips_vm/state_inline.h,
	iface/nips/nips_vm/state_parts.c,
	iface/nips/nips_vm/state_parts.h, iface/nips/nips_vm/timeval.h,
	iface/nips/nips_vm/tools.h: NIPS VM added to the SPOT
	distribution.
	* configure.ac, iface/Makefile.am: Build system updated for the
	NIPS front-end.

* src/ltlenv/environment.hh, src/ltlvisit/basicreduce.cc: Remove
useless FIXMEs.
* src/ltlvisit/reduce.cc (reduce_visitor::visit(binop)): Compute
syntactic implications only when needed.
* src/tgbaalgos/reductgba_sim_del.cc
(build_recurse_successor_spoiler): Remplace the FIXME by an assert.
* src/tgba/tgbareduc.cc: Reword some comments, discard old
commented code.

so we tolerate more flex versions.
* src/ltlparse/Makefile.am (AM_CXXFLAGS): Likewise.
* src/tgbaparse/Makefile.am (AM_CXXFLAGS): Likewise.

using 80 columns.

* src/ltlast/formula.hh (hash): Remove const from return type.
This kills a g++-4.3 warning.
* src/misc/hash.hh: Adjust to use unordered_set and unordered_map
from TR1 when g++-4.3 is used.
* src/evtgba/product.cc, src/ltltest/randltl.cc,
src/ltlvisit/randomltl.cc, src/ltlvisit/tostring.cc,
src/misc/freelist.hh, src/misc/optionmap.cc,
src/tgba/tgbareduc.hh, src/tgbaalgos/gv04.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/randomgraph.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc,
src/ltltest/equals.cc, src/ltltest/readltl.cc,
src/ltltest/reduc.cc, src/ltltest/syntimpl.cc,
src/ltltest/tostring.cc, src/tgbatest/ltlprod.cc,
src/tgbatest/powerset.cc, src/tgbatest/explprod.cc,
src/tgbatest/mixprod.cc, src/tgbatest/readsave.cc,
src/tgbatest/reductgba.cc, src/tgbatest/tgbaread.cc,
src/tgbatest/tripprod.cc, src/evtgbatest/product.cc,
src/evtgbatest/readsave.cc, src/evtgbatest/ltl2evtgba.cc,
src/evtgbatest/readsave.cc: Add missing includes.
* src/tgbatest/explicit.test, src/tgbatest/explprod.test,
src/tgbatest/explpro2.test, src/tgbatest/troprod.test,
src/tgbatest/emptchk.test: Cope with different outputs.

compile with g++-4.3 otherwise.
* src/Ltl-parse.yy (matchCharactersFromStream): Declare the chars
as const to kill a g++ warning.
* src/NeverClaim-parse.yy (yyerror): Declare the error
message as const to kill a g++ warning.

until Doxygen is fixed.  Doxygen 1.5.5 generate incorrect LaTeX
code.

Clarify comments.

Remove superfluous semicolon.

assert().  This patch has been lying in my tree since 2007-04-30.

intricate memory corruption bug prevented me to check the patch
in.  It took me two days to realize why find_state() must do a
double loop over the candidates to check for equality before
checking for inclusion(s).

* iface/gspn/ltlgspn.cc: New options, -e45 and -n.
* iface/gspn/ssp.cc, iface/gspn/ssp.hh: Handle these.
* src/tgbaalgos/gtec/gtec.cc (TRACE): Add some debugging traces.
(couvreur99_check_shy::dump_queue): New function.
* src/tgbaalgos/gtec/gtec.hh (couvreur99_check_shy::dump_queue):
New function.