GetSortKey
status_t GetSortKey(const char* string, BString* key)
void GetSortKey(const char* string,
fCollator.GetSortKey(string, sortKey);
collator.GetSortKey(tests[i].first, &a);
collator.GetSortKey(tests[i].second, &b);
collator->GetSortKey(kStrings[i], &key);
gCollator->GetSortKey(strings[i], &key);
gCollator->GetSortKey(strings[i - 1], &a);
gCollator->GetSortKey(strings[i], &b);