[Bug fortran/71952] [Coarray, F2008] Rejects valid coarray access with array partref

[damian at sourceryinstitute dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71952

--- Comment #2 from Damian Rouson <damian at sourceryinstitute dot org> ---
Prior to 5.1, gfortran only supported single-image coarray execution. Possibly
it's a regression for behavior with -fcoarray=single, but the more important
case is -fcoarray=lib.