[Patch, Fortran] PR 41800: [OOP] ICE in fold_convert_loc, at fold-const.c:2789

[Janus Weil]

>> here is a one-line fix for another OOP problem, connected to
>> CLASS-valued functions.
>>
>> Regtested on x86_64-unknown-linux-gnu. Ok for trunk?
>>
> OK, Thanks

Committed as r153504.

Cheers,
Janus