[Bug fortran/18918] Eventually support Fortran 2008's coarrays [co-arrays]

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18918
Bug 18918 depends on bug 25830, which changed state.

Bug 25830 Summary: [libgfortran] Optionally support multi-process locking
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25830

           What    |Removed                     |Added
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             Status|WAITING                     |RESOLVED
         Resolution|---                         |WONTFIX