Make SuggestionWordInfo non-final for testabilty

Needed for ag/563043
Bug:17731683
Change-Id: I4d19e512a311547204f7e8d7885fc886757a18b7

java/src/com/android/inputmethod/latin/SuggestedWords.java

@@ -230,7 +230,8 @@ public class SuggestedWords {
         return candidate.isEligibleForAutoCommit() ? candidate : null;
     }
 
-    public static final class SuggestedWordInfo {
+    // non-final for testability.
+    public static class SuggestedWordInfo {
         public static final int NOT_AN_INDEX = -1;
         public static final int NOT_A_CONFIDENCE = -1;
         public static final int MAX_SCORE = Integer.MAX_VALUE;