Merge "Switch test to TestIoUtils from IoUtils"

import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

import libcore.io.IoUtils;

import libcore.testing.io.TestIoUtils;

import org.junit.After;

import org.junit.Assert;

    @Before

    public void setUp() {

        mTmpDir = IoUtils.createTemporaryDirectory("DexMetadataHelperTest");

        mTmpDir = TestIoUtils.createTemporaryDirectory("DexMetadataHelperTest");

    }

    @After