expanser to expand the mentioned node.

some_clk" should be written "(x:some_type) when some_clk"

(--inline-iterators) to activate it.

nb : do not inline completely nested iterator calls (yet, cf TODO).

as many  new local  variables as necessary  so that an  expression is
made at most of one operator.

The rational  for that  is to obtain  a lic  code that is  trivial to
clock check (nested node calls, for example, make it less simple).

The old behavior can still be obtained using --keep-nested-calls.

During  that  change,   I  realised  that  I  did   not  clock  check
asserts. Hence, I have also added this check.

to avoid name clashes in the lic.

it breaks non-reg tests when executed in the original directory.

(well, for the first file, the numbers were ok :-).

Also, begin to sort out a little bit the mess in the Global module.

Moreover, augment the necessary print level of most internal structure
dumping function.

of "red<<if, 3>>".

Put the unification stuff in  a dedicated module, and add some random
unit tests to it.

tests.

Also, Add the possibility to have several lustre files in the
command-line arguments.

remove the power operator.

Define a lustre.lus that contains a packaged version of Lustre
predefined operators. It will be in the standard lustre library,
and should be accessible directly (path).

For non-regression tests, do not use Lazycompiler.test function
anymore and just use  LazyCompiler.node_check instead.

put in the new file compiledDataDump.ml all the stuff
related to string convertions of CompiledData items.

src/lxm.ml:
src/global: (new file)
   Add the lustre file name in error messages.

src/compiledData.ml:
   Better Data structure dumping (string_of_type_eff,string_of_const_eff),
   and more dumping (LazyCompiler.check_const_interface).

src/lazyCompiler.ml:
   Fix a bug that prevented enum constants to be exported.
   Indeed, in LazyCompiler.const_check_interface_do, only extern
   constants (Extern_const_eff) were accepted in the provided part, whereas
   enum contants (Enum_const_eff) should also be accepted.

   Force constants interface checking in LazyCompiler.test.

src/test/Makefile:
src/test/onlyroll.lus:
src/test/heater_control.lus:
src/test/pfs.lus:
   Some more test files.