[Bug fortran/82007] DTIO write format stored in a string leads to severe errors

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82007

--- Comment #5 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
The ice is because we are not handling the case where the expreesion is type
function vs character expression or character constant. I am thinking we need
to simplify the expression before trying to use it.