135              const SymbolTable* old_isymbols,  in Relabel()  argument
145   if (old_isymbols && new_isymbols) {  in Relabel()
146     for (SymbolTableIterator syms_iter(*old_isymbols); !syms_iter.Done();  in Relabel()
240                  const SymbolTable* old_isymbols,  in RelabelFstImpl()  argument
251     SetInputSymbols(old_isymbols);  in RelabelFstImpl()
254     if (old_isymbols && new_isymbols &&  in RelabelFstImpl()
255         old_isymbols->LabeledCheckSum() != new_isymbols->LabeledCheckSum()) {  in RelabelFstImpl()
256       for (SymbolTableIterator syms_iter(*old_isymbols); !syms_iter.Done();  in RelabelFstImpl()
424              const SymbolTable* old_isymbols,  in RelabelFst()  argument
428     : ImplToFst<Impl>(new Impl(fst, old_isymbols, new_isymbols, old_osymbols,  in RelabelFst()
432              const SymbolTable* old_isymbols,  in RelabelFst()  argument
437     : ImplToFst<Impl>(new Impl(fst, old_isymbols, new_isymbols, old_osymbols,  in RelabelFst()