[Kernel] avoid stacktrace and show more precise plugin loading error message

See merge request frama-c/frama-c!4754

[cabs2cil] Use CALL loc as vdecl for missing prototypes

See merge request frama-c/frama-c!4791

[wp] fix integer/pointer conversion

See merge request frama-c/frama-c!4779

Loc will be updated once we encounter the definition

[Kernel] Force specifier in decl

See merge request frama-c/frama-c!4772

[Kernel] improve mergecil warning about conflicting types

See merge request frama-c/frama-c!4783

Close frama-c/frama-c#1447

[libc] add several assigns clauses and minor improvements

See merge request frama-c/frama-c!4765

[kernel] ACSL Modules

See merge request frama-c/frama-c!4521

[Kernel] Add warning for implicit int

See merge request frama-c/frama-c!4782

[ivette] Add sidePanel in dome/frame

See merge request frama-c/frama-c!4770

[e-acsl] Here inliner: specialise logical functions called with the Here label

See merge request frama-c/frama-c!4747

Logic normalization transforms predicates and terms from the original
code. Currently the assertion string that is shown to the user when the
assertion fails shows these transformed forms. This should not be the
case, as the user cannot understand where they stem from.

Therefore we need to determine the original forms and use them when
generating the assertion strings.

This commit extends the memoization modules in Logic_normalizer to be
bidirectional maps, such that the original form of a term or predicate
can be determined.