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Backport from mainline * trans-stmt.c (forall_info): Replace the next_nest and outer fields that previously implemented a doubly-linked list with a single prev_nest field (singly-linked list). (gfc_trans_nested_forall_loop): The nested_forall_info argument now denotes the innermost FORALL in the loop nest. (gfc_trans_forall_1): Link/cons the new "info" to the head of the nested_forall_info linked list. Free the current "info" when done. * dependency.c (gfc_full_array_ref_p): Check that ref->next is NULL, i.e. that the ARRAY_REF doesn't mention components. * gfortran.dg/forall_7.f90: New test case. From-SVN: r121328
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