[Patch, fortran] PRs 70752 and 72709 - more deferred character length bugs

[Dominique d'Humières]

> Is se->string_length guaranteed to be of type gfc_array_index_type_here?
> If so, why? And if not, maybe a fold_convert is in order?

I don’t know if this related, but if I build gfortran with the patches for PRs 70752 and 72709, 70149, and 65677 with --enable-checking=yes, compiling the test in pr82617 gives an ICE:

pr82617.f90:68:0:

68 |           items(i_item) = str(i0:i1-1)
   | 
internal compiler error: tree check: expected tree that contains 'decl minimal' structure, have 'indirect_ref' in get_array_span, at fortran/trans.c:301

Cheers,

Dominique