[Bug fortran/57696] [OOP] Defined assignment for components not used when those are ALLOCATABLE

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57696

--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> ---
See also PR 57697; the a similar needs to be also addressed when fixing this
bug, namely the case that for:
  var.foo.bar
"foo" is NULL/unallocated while "bar" appears in the defined assignment.

See also PR46897 for another missing feature.