[Bug fortran/99711] Crash when reading an allocated character array in namelist

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99711

--- Comment #7 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Digging further within gfc_resolve_dt which is resolving the READ statement,
one can find:

(gdb) p *e->symtree.n.sym.ts.u.cl
$31 = {length = 0x0, next = 0x0, length_from_typespec = false, backend_decl =
0x0, 
  passed_length = 0x0, resolved = 1}

e is the gfc_expr for cbulist_ru in the test case

I have checked both the gfc_expr itself and it's symtree and in all cases the
character length is NULL, not being intialized.  I suspect it is getting missed
in the resolution of the allocate statement.  At this point in gfc_resolve_dt
it is marked as having been resolved.