Prepair for advanced two words error correction

Change-Id: I4c8a21f0f6e349ddafd9b402583321a60855cfe8
diff --git a/native/src/unigram_dictionary.h b/native/src/unigram_dictionary.h
index 5e7a758..b950971 100644
--- a/native/src/unigram_dictionary.h
+++ b/native/src/unigram_dictionary.h
@@ -104,6 +104,10 @@
             const int *xcoordinates, const int *ycoordinates, const int *codes,
             const bool useFullEditDistance, const int inputLength, const int spaceProximityPos,
             const int missingSpacePos, Correction *correction, WordsPriorityQueuePool* queuePool);
+    void getSplitTwoWordsSuggestionsOld(ProximityInfo *proximityInfo,
+            const int *xcoordinates, const int *ycoordinates, const int *codes,
+            const bool useFullEditDistance, const int inputLength, const int spaceProximityPos,
+            const int missingSpacePos, Correction *correction, WordsPriorityQueuePool* queuePool);
     void getMissingSpaceWords(ProximityInfo *proximityInfo, const int *xcoordinates,
             const int *ycoordinates, const int *codes, const bool useFullEditDistance,
             const int inputLength, const int missingSpacePos, Correction *correction,