Add typedef for the Log level

package android.util;

import android.annotation.IntDef;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.os.DeadSystemException;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.io.Writer;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.net.UnknownHostException;

/**

 * significant work and incurring significant overhead.

 */

public final class Log {

    /** @hide */

    @IntDef({ASSERT, ERROR, WARN, INFO, DEBUG, VERBOSE})

    @Retention(RetentionPolicy.SOURCE)

    public @interface Level {}

    /**

     * Priority constant for the println method; use Log.v.

     *  INFO will be logged. Before you make any calls to a logging method you should check to see

     *  if your tag should be logged. You can change the default level by setting a system property:

     *      'setprop log.tag.<YOUR_LOG_TAG> <LEVEL>'

     *  Where level is either VERBOSE, DEBUG, INFO, WARN, ERROR, ASSERT, or SUPPRESS. SUPPRESS will

     *  turn off all logging for your tag. You can also create a local.prop file that with the

     *  following in it:

     *  Where level is either VERBOSE, DEBUG, INFO, WARN, ERROR, or ASSERT.

     *  You can also create a local.prop file that with the following in it:

     *      'log.tag.<YOUR_LOG_TAG>=<LEVEL>'

     *  and place that in /data/local.prop.

     *

     *         for Nougat (7.0) releases (API <= 23) and prior, there is no

     *         tag limit of concern after this API level.

     */

    public static native boolean isLoggable(@Nullable String tag, int level);

    public static native boolean isLoggable(@Nullable String tag, @Level int level);

    /**

     * Send a {@link #WARN} log message and log the exception.

     * @param msg The message you would like logged.

     * @return The number of bytes written.

     */

    public static int println(int priority, @Nullable String tag, @NonNull String msg) {

    public static int println(@Level int priority, @Nullable String tag, @NonNull String msg) {

        return println_native(LOG_ID_MAIN, priority, tag, msg);

    }