trans-stmt.c (gfc_trans_forall_loop): Clear maskindex before the outermost loop.

trans-stmt.c (gfc_trans_forall_loop): Clear maskindex before the outermost loop.

	* trans-stmt.c (gfc_trans_forall_loop): Clear maskindex before
	the outermost loop.
	(gfc_trans_assign_need_temp, gfc_trans_pointer_assign_need_temp,
	gfc_trans_forall_1, gfc_evaluate_where_mask, gfc_trans_where_2):
	Don't clear maskindexes here.

	* gfortran.fortran-torture/execute/forall_7.f90: New test.

From-SVN: r101865