[ENOMEM] check for error in lookup visited set.
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@ -163,6 +163,9 @@ struct hb_closure_lookups_context_t :
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if (lookup_count++ > HB_MAX_LOOKUP_INDICES)
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return true;
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if (visited_lookups->in_error ())
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return true;
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return visited_lookups->has (lookup_index);
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}
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