merging of trunk to fortran-dev?

[Janus Weil]

>> PPS: I have just updated fortran-dev to the branch: 155317-155509 (as
>> Rev. 155511).
>
> A couple of regressions appeared on fortran-dev -- clean check check out,  no
> changes of mine:
>
> FAIL: gfortran.dg/class_9.f03  -O0  execution test
> FAIL: gfortran.dg/dynamic_dispatch_1.f03  -O0  (internal compiler error)
> FAIL: gfortran.dg/dynamic_dispatch_2.f03  -O0  (internal compiler error)
> FAIL: gfortran.dg/dynamic_dispatch_3.f03  -O0  (internal compiler error)
> FAIL: gfortran.dg/dynamic_dispatch_4.f03  -O0  execution test
> FAIL: gfortran.dg/dynamic_dispatch_5.f03  -O0  (internal compiler error)
> FAIL: gfortran.dg/dynamic_dispatch_8.f03  -O0  execution test
>
> These are all OOP-related. Janus, could you have a look, please?

Yes, I can confirm this (apart from dynamic_dispatch_4, which works for me).

First guess: My patch for PR42353 (which makes the vtypes and vtabs
private). Probably Paul was right with his suspicion that this might
cause trouble on the branch. Will investigate.

Cheers,
Janus