[Bug fortran/65894] [6 Regression] severe regression in gfortran 6.0.0

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65894

--- Comment #30 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
While the Mikael's patch allows the test suite to run as expected, adding the
patch for pr58586 breaks it again.