re PR fortran/15324 (segfault / ICE with array of assumed length characters)

re PR fortran/15324 (segfault / ICE with array of assumed length characters)

 PR fortran/15324
* trans-array.c gfc_trans_g77_array,
gfc_trans_dummy_array_bias): Don't call gfc_trans_string_init
for assumed length characters.
(gfc_conv_expr_descriptor): Set se->string_length if dealing
with a character expression.
(gfc_cvonv_array_parameter): Pass string length when passing
character array according to g77 conventions.

Fix ChangeLog

From-SVN: r84755