Dear all,

frontend-optimization of MINLOC/MAXLOC tries to generate code for rank-1
arrays that may be expanded inline later and optimzed.  Except when the
argument is a character array...

As there is even a comment in trans-intrinsic.cc that we will call a
library function for character arguments anyway, we better punt here.
The attached obvious patch does this and was pre-approved by Thomas in
the PR.

Regtested on x86_64-pc-linux-gnu and pushed to mainline as

https://gcc.gnu.org/g:e3e369dad6cbecb1b490b3f3b154c600fba5a6f3

As this is a wrong-code issue, I'd like to backport this to 11-branch.

Thanks,
Harald