Remove unused files along the way (myGenlex.ml/mli)

add and install an alias to lus2lic name lv6.

lus2lic --gen-autotest now overrides existing _oracle*.lus and _env*.lut files

I've fixed that using memcmp, which should be fine since compared elements
are of the same types.

+ add a test that reveal a pb in the generated C code in lustre programs
that perform equalities on arrays.

Also, use rdbg instead of lurettetop to run the test.

and replace enumerated clock in the var_info even if it does not
appear in a val_exp.

nb : luciole-rif is now  in the rdbg repo.

Also, do not set the seed when comparing compilers.

The objective is touse rdbg instead of lurettetop to perform compiler
comparisons. I will plug it later (cf test/site.exp)

- add a sectiuon on operators priority
- fix the automatic latex grammar generator (now calles yacc2latex)

also force the -rif in the utils/luciole-rif script when used with
lutin or lus2lic.

More precisely, issuing an "exit 2" is not enough for the
should_work proc in test/site.exp to state that the test fails.

That fix revealed a certain number of bad programs.
Some were not really wrong ; there were just not respecting the
naming convention used to automated the test (i.e., main node name =
file name).

It also releaved a real bug due to the fact that type
instanciatiation is not propagated during model instanciatiation,
where creates a loop between (Lic2soc.process_node and
Lic2soc.soc_of_node). Indeed it searches in the soc the table for an
abstract profile.

+ the utils/lustrequiv script that tries to state that 2 nodes a equivalent or not
using lesar and lurette.

Add an option --to-c-dont-inline-predef to get the previous behavior.

Also remove the port number from the sum files

by taking advantage of the multi-proc -> x5 speedup with j 4 !

Note that i do not use -j 4 (qtest) for reference (reftest) to lower
timings distorsion due to the machine load.

For instance, do not launch tests that perform result comparison (via
lurette) on files that contains extern nodes (as they cannot be
executed) or package.  Package do not work because appending the
tested lustre file with the generated oracle as I do is wrong in
presence of package.

Moreover, my current test process is not able to test programs which
main node IOs are not all on the base clock. I have fixed this by
patching the examples.

# of expected passes 		1508 -> 1512
# of unexpected failures	130 -> 84

30 tests fail, but 169 pass!!!

# of expected passes 		1339 -> 1508
# of unexpected failures	100 -> 130

Add the modes3x2 exemple of Pascal (its version + a la V6 version).

Fix the doc wrt the merge exemple (the tex was refering to a
non-existant file).

Work in progress...

(cf 55d3d77c470f416befd16a1b7d47f751eb2171fc)

Some generated intermediary variables where declared as int instead
of bool.  Funnily, ecexe was ok with that...

Also add support to rdbg to perform nonreg test. I do not plug yet it
as it's twice slower. but most of it seems due patch_ecexe. Indeed,
lus2lic -interface compile the whole program just to print the node
interface.

nb: it has detected a couple of existing bugs.

That was quite confusing for rdbg -lurette --*-stdio !!!

  #fail: 83 -> 81

The rationale is to avoid local vars blow-up on some
examples. Indeed, the generated oracle blows-up (e.g., on left.lus)
if we execute it via v4, whereas via v6 it works fine.

This change triggers a couple of bugs that ware easy to fix
(confusion between div and slash) that I've fixed along the way.
For the others, I'll see later.

Overall it's a progress albeit
  #fail: 80 -> 83

indeed:
  #unresolved: 20 -> 12
  #passes		878 -> 883
  time: 335 -> 228

The test now runs in 150s (versus 417s)

[...] for some reasons, i cannot reproduce the 150s !!!

where equations such as " ok = (x=x_ref); " are translated into incorrect v' lustre
when x is a structure or an array.

nb : #FAILS=152->135

(to be kind with data plotters).