[Bug fortran/124161] [14/15/16 Regression] ICE in fold_convert_loc with submodule polymorphic TBP dispatch

[zbeekman at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124161

--- Comment #5 from Zaak <zbeekman at gmail dot com> ---
In my testing the submodule was essential, if I recall correctly.