add test for CharSequence construction and ToString()
add test for CharSequence construction and ToString()

Unity-Technologies/android-jni-bridge,Unity-Technologies/android-jni-bridge,bitter/android-jni-bridge,bitter/android-jni-bridge,Unity-Technologies/android-jni-bridge,bitter/android-jni-bridge,Unity-Technologies/android-jni-bridge,bitter/android-jni-bridge,Unity-Technologies/android-jni-bridge,Unity-Technologies/android-jni-bridge