The 'function' keyword is for stateless nodes only,
 the 'node' keyword is any kind of node.
 Improves compilation and paves the way for more optimizations.

   (to turn conditionals into merges, which yield more efficient C code)

corrected bugs in clock generalization that produced pessimistic C code (not wrong though); corrected bug with node importation policy wrt (re)declaration, (re)definition...

 - added constant definition with a struct type
 - added checking for multiple definitions of nodes (behavior was buggy)
 - better and more uniform error messages
   for undefined/already defined symbols

 We still need struct expressions...

Cette ligne, et les suivantes ci-dessous, seront ignorées--

M    trunk/src/corelang.mli
M    trunk/src/type_predef.ml
M    trunk/src/main_lustre_compiler.ml
M    trunk/src/types.ml
M    trunk/src/printers.ml
M    trunk/src/typing.ml
M    trunk/src/horn_backend.ml
M    trunk/src/parser_lustre.mly
M    trunk/src/env.ml
M    trunk/src/c_backend.ml
M    trunk/src/corelang.ml

corrected bug in arrow macros names, added storage attribute for static alloc macros, option -d now creates the destination directory if needed, with current dir as file permissions

 - arrows are now factorized out and become part of include
   as files arrow.h and arrow.c
 - no more arrows in generated code
 - compiling and linking arrow.c is only necessary
   in case of dynamic allocation 
 - version now includes installation prefix (for the standard lib)
   and svn number

- added clock checking between interface and implementation files

Systematic use of the build path

 - added -d support
 - corrected #open parser problem
 - corrected interface/implementation (.lusi/.lus) checking
   for types (not yet for clocks)

The test target requires branch lustrec/horn as binary lustreh.

library (1.8.3) which is not widely available in distro repository.
Moreover "stable" sort is not necessary, sort will do.
Fixes Issue #49: https://cavale.enseeiht.fr/redmine/issues/49

Generation of a witness with both the main node  and hte inlined main node
Test script modified to check consistency of the inlining process