[Bug fortran/50410] [7/8/9 Regression] ICE in record_reference

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50410

--- Comment #32 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Some of the tests in this PR are fixed by the patch at

https://gcc.gnu.org/ml/fortran/2019-01/msg00065.html