nb: still does not work for nested iterators

Remove a lot of warnings (considered as errors by dune).

I've done the same fix in LicDump actually to be sure (more parenthesis can't hurt).

fix carligths.lus which was badly initialized

And it is now done only by Lic2soc (L2lCheckLoops is not used anymore)

Also, during this change, I was bitten again by the « "__" versus "::" in ident
names » problem again.

The core of this problem is due to the fact that I use LicDump both for
(1) dealing with internal ident names
(2) generating lustre files

Because of (2), ident names may depend on the ec or the v4 option. hence, internal
names were sometimes translated with "__" instead of "::".

To (try to) fix that, I've added a boolean flag to all "to_string" functions that
states whether the function is used for internal purposes, or for generating lustre
files.

It was quite a boring change, that triggered other problems, that I've fixed
in this (too long) commit :
 - -esa should force -en, otherwise bad things happen (-esa is used for -ec anyway)
 - in -esa mode, #/nor inputs tuples of bool, not arrays
 - fix the list of predi op that returns a type different that its arg (SocPredef)

It was generetaing wrong code in conjunction with -ec.

In particular, it was generating n-any "and" instead of binary "and".

Also, I needed (in L2LExpandEnum) to generated a Lic.ARRAY of const
instead of a Lic.Array_const_eff so that LicDump properly generated
ec code.

To do that, I have created a new dedicated module L2lExpandEnum, that
actually also deals with -eei (which was probably wrong, even if I
have not counter-exemple).

Use 1-hot encoding instead of log-encoding

I've fixed a bug in L2lExpandArrays that occurs on equation such as
  some_bool = (some_array1 = some_array2);

Also, I've rewritten Lv6Compile for more readability

Remove duplicated code when using SocMap.find and co

Otherwise, strange things sometimes happen.

which was not even compiling...

so that w7/lesar can help otawa/ilp to prune path in the binary.

nb : not working on the convertible example:
 - sometimes the module name still appear in the ident (enums)
 - clocks are not well supported by Lesar actually. More thinking is necessary.

Because otherwise, V4 ec tools behaves strangely.

The bug was appearing a node was called on a non base clock that was
existing in the called nodes (name clash). Typically, it occurs on
recursive node called on some non-trivial clocks.

Also, use maps instead of list to hold the substitution between
params and args.

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.

('::' vs '__')

soc2c -2cw7: use mkff+fixffx+arm.looploc to fix extern lib calls.

(which breaks lurettetop)

nb : Mamadou's change broke some tests (18->53). Empty body is
generated for nodes that have one eq.  I'll fix that later.

(which breaks lurettetop)

nb : Mamadou's change broke some tests (18->53). Empty body is
generated for nodes that have one eq.  I'll fix that later.

-kcg: forces the -esa(expand_arrays) option so that arrays walk with diese.We will see later how to treat properly the arrays.

-kcg: evaluates types enum and struct correctly.
-kcg: evaluates const correctly.

  More precisely, a node that has memory ougth to be declared using
  "node", and using "function" otherwise.

  Moreover, a node that performs side-effects (i.e., if it calls an
  extern node that performs side effects) ougth to be declared as
  "unsafe".

  Safe/unsafe mismatches raise an error.

  Memory mismatches raise an error in one way (a "function" that uses
  memory), and a warning in the other way (a "node" that uses no
  memory).

Also fix some errors done when transmitting the unsafe flag (well, it's
the first time I use it!).

Report by willie (cf mail of 8/10/2014 to get the file)

file:/tmp/modes3x2.lus

lus2lic -esa -en -2c /tmp/modes3x2.lus -n modes3x2

But it gives an error of:
Error. in file "/mnt/A/wsept/modes3x2_pre_orig_lus2lic_en_esa/modes3x2.lus",
line 74, col 8 to 8, token '#': only one operator per equation is allowed
(v04_0, v04_1).

Which is the line:
assert #(on_off, toggle);

-----------------------------------------------------------------

Actually, refuse programs that uses "#" or "nor" run with -esa and
-2c|-exec

That means that willie program is now rejected.

Nevertheless, that change migth fix some other programs (that uses
arrays, and used with -esa and -exec or -2c).

The translation was faithfull to the comment, but the comment was wrong :
in order to translate a condact, we need clocks (when) !

node condact_toto(i0:bool; i1:int; i2:int) returns (o0:int) = Lustre::condact<<toto, 0>>;

is now translated into:

condact_toto(i0:bool; i1:int; i2:int) returns (o0:int)
let
  o0 = if i0 then current(toto(i1 when i0, i2 when i0) ) else (0 fby o0);
tel

nb : the -exec mode was working because I did not use the generated soc,
which was completely wrong.

Note that to do that, I have modified the CURRENT variant of
Lic.val_exp, to attach it the clock the current holds on. Indeed, the
clock is mandatory to generated correct code...

In an ideal world, this clock information may have explicitely been
set by the user ("current(clk_of_X,X)" instead of "current(X)"), but
for historical reason, it is not the case.

Hence, this information is added as soon as it is available, namely,
during clock checking.

# of unexpected failures	101->109

but actually, some new test passes causes several other failing test
to be tried, so it is not really a regression.