Use the unique flag in SuggestionsView

Also, the first word in a sugestions list can never be
obsolete.

Change-Id: Ib21439aac8db4e6ce5b15b7a2aabe4222bc354db

java/src/com/android/inputmethod/compat/SuggestionSpanUtils.java

@@ -93,7 +93,6 @@ public class SuggestionSpanUtils {
             CharSequence pickedWord, SuggestedWords suggestedWords) {
         if (TextUtils.isEmpty(pickedWord) || CONSTRUCTOR_SuggestionSpan == null
                 || suggestedWords == null || suggestedWords.size() == 0
-                || suggestedWords.getInfo(0).isObsoleteSuggestedWord()
                 || OBJ_SUGGESTIONS_MAX_SIZE == null) {
             return pickedWord;
         }

java/src/com/android/inputmethod/latin/suggestions/SuggestionsView.java

@@ -341,7 +341,7 @@ public class SuggestionsView extends RelativeLayout implements OnClickListener,
 
             final SuggestedWordInfo info = (pos < suggestedWords.size())
                     ? suggestedWords.getInfo(pos) : null;
-            if (info != null && info.isObsoleteSuggestedWord()) {
+            if (suggestedWords.mIsObsoleteSuggestions && isSuggested) {
                 return applyAlpha(color, mAlphaObsoleted);
             } else {
                 return color;