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They respectively implements the semantics of small integer sets and integer
intervals.

Exports 4 new functions in ival:
- is_int and is_float
- is_small_set and project_small_set

[e-acsl] remove copy-visitors from E-ACSL pre-stages

See merge request frama-c/frama-c!2492

[e-acsl] remove unnecessary code in Prepare_ast corresponding to type 'position'

[e-acsl] ensure that terms of the E-ACSL ast are never shared before code injection. This invariant is required for E-ACSL typing soundness

[dev] silence warning 40 and 42

Closes #712

See merge request frama-c/frama-c!2495

type-based disambiguation is not a bad thing after all.

fix normalization of source file names

See merge request frama-c/frama-c!2493

useful to obtain reproducible oracles even with fully normalized input files

Use Filepath as machinery for Kernel.Files

See merge request frama-c/frama-c!2487

[Server] New requests for the GUI : load and list of logical properties

See merge request frama-c/frama-c!2481

[wp/tests] suppress range-steps report

See merge request frama-c/frama-c!2436