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 test now runs in 150s (versus 417s)

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

itself calls another node on a non-trivial clock (i.e., using a when)
was not producing correct code.

I've fixed this by performing the fix-point on nodes rather than on
equations. Indeed its more natural and efficient, and it avoid the
problem above. However, I did not really fix the problem, but just
turn around it. All tests seems to work fine though.

nb : #FAILS=81->80 (and -2 unresolved, but because I fixed the prog)

112 tests failed, and 127 passed !!

Plug back the enums expansion (-ee, --expand-enums) that translates enum types using extern consts and types.

Remove all test that now passes from the broken dir.

It was beacause the tables in LicVarName were cleaned and because the way
this module work sucks...

Also do not print type and const declarations with -ec.

nb : I've transformed all the regressions I've seen into todo entries
in todo.org.

nb 2 : I did not mv the newly broken tests into the broken dirs. I'll
do that for those I do not want to fix in the short term.