Add pretty-printing to SuggestedWords.Builder to help debug

        public CharSequence getWord(int pos) {

            return mWords.get(pos);

        }

        public String toString() {

            // Pretty-print method to help debug

            final StringBuilder sb = new StringBuilder("StringBuilder: mTypedWordValid = "

                    + mTypedWordValid + " ; mHasMinimalSuggestion = " + mHasMinimalSuggestion

                    + " ; mIsPunctuationSuggestions = " + mIsPunctuationSuggestions

                    + " --- ");

            for (CharSequence s : mWords) {

                sb.append(s);

                sb.append(" ; ");

            }

            return sb.toString();

        }

    }

    public static class SuggestedWordInfo {