[eacsl] Fix `init_function.c` test

See merge request frama-c/frama-c!3374

[libc] Special float contract: always generates requires clauses with a name.

Closes #1066

See merge request frama-c/frama-c!3367

[eacsl] Translate the default behavior requires clause before evaluating the assumes

See merge request frama-c/frama-c!3368

[server] Fixes the array synchronization via [States.update] and [States.remove].

See merge request frama-c/frama-c!3364

[Dev] compatibility with Landmarks 1.4

See merge request frama-c/frama-c!3314

Fix/ivette/always poll

See merge request frama-c/frama-c!3360

[wp] Do not drop type step without variables

See merge request frama-c/frama-c!3358

- do not drop type step without variables
- better management of Branch/Either in Condition.ml

[ivette] Adds a status message in the bottom bar, and new menu items

See merge request frama-c/frama-c!3355

[Ivette] Add default signal to GET request

See merge request frama-c/frama-c!3351

In ivette, ensures that the reset of the selected locations (and the call to the
'getMainFunction' request) is only done after the AST has been computed.

[e-acsl] reactivate test printf.c

See merge request frama-c/frama-c!3354

[Yvette] Add in menu "Set files"

See merge request frama-c/frama-c!3339

- The signal Ast.changed is emitted by Frama-C on any change of the AST.
  The AST view is always reloaded when this signal is emitted.
- Ivette resets the selected locations according to user actions.

- when the AST is recomputed;
- when the current project changes and the selection is empty.

In ivette, selects the entry point after opening new source files.