[Bug fortran/67451] [5/6 Regression] [F08] ICE with sourced allocation from coarray.

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67451

--- Comment #13 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The patch fixes the two issues I saw on x86_64-apple-darwin15 (comment 10 and
an ICE when compiling the test with -fcoarray=lib).