Fortran] PR 92208 don't use function-result dummy variable as actual argument

Fortran] PR 92208 don't use function-result dummy variable as actual argument

        gcc/fortran/
        Backported from mainline
        2019-10-30  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/92208
        * trans-array.c (gfc_conv_array_parameter): Only copy
        string-length backend_decl if expression is not a function.

        gcc/testsuite/
        Backported from mainline
        2019-10-30  Tobias Burnus  <tobias@codesourcery.com>

        PR fortran/92208
        * gfortran.dg/pr92208.f90: New.

From-SVN: r277783