Add languageWeight as an argument of getSuggestions.

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

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

...c/com/android/inputmethod/latin/DictionaryCollection.java

...id/inputmethod/latin/DictionaryFacilitatorForSuggest.java

...android/inputmethod/latin/ExpandableBinaryDictionary.java

...m/android/inputmethod/latin/ReadOnlyBinaryDictionary.java

...od/latin/SynchronouslyLoadedContactsBinaryDictionary.java

...method/latin/SynchronouslyLoadedUserBinaryDictionary.java

...latin/spellcheck/AndroidWordLevelSpellCheckerSession.java

.../android/inputmethod/latin/spellcheck/DictionaryPool.java