MAGETWO-34520: [UI] Updates messaging styles.

- fixed tests

Author: Dmytro Vilchynskyi

dev/tests/functional/tests/app/Magento/Backend/Test/Page/Adminhtml/Dashboard.xml

@@ -10,7 +10,7 @@
     <block name="adminPanelHeader" class="Magento\Backend\Test\Block\Page\Header" locator=".page-header" strategy="css selector"/>
     <block name="titleBlock" class="Magento\Theme\Test\Block\Html\Title" locator=".page-title-wrapper" strategy="css selector"/>
     <block name="mainBlock" class="Magento\Backend\Test\Block\Page\Main" locator=".dashboard-main" strategy="css selector"/>
-    <block name="menuBlock" class="Magento\Backend\Test\Block\Menu" locator=".navigation" strategy="css selector"/>
+    <block name="menuBlock" class="Magento\Backend\Test\Block\Menu" locator=".admin__menu" strategy="css selector"/>
     <block name="storeStatsBlock" class="Magento\Backend\Test\Block\Dashboard\StoreStats" locator=".dashboard-store-stats" strategy="css selector"/>
   </page>
 </config>

dev/tests/functional/tests/app/Magento/UrlRewrite/Test/Page/Adminhtml/UrlRewriteIndex.xml

@@ -9,6 +9,6 @@
   <page name="UrlRewriteIndex" area="Adminhtml" mca="admin/url_rewrite/index" module="Magento_UrlRewrite">
     <block name="pageActionsBlock" class="Magento\Backend\Test\Block\GridPageActions" locator=".page-main-actions" strategy="css selector"/>
     <block name="urlRedirectGrid" class="Magento\UrlRewrite\Test\Block\Adminhtml\Catalog\Category\Grid" locator="#urlrewriteGrid" strategy="css selector"/>
-    <block name="messagesBlock" class="Magento\Core\Test\Block\Messages" locator=".messages .messages" strategy="css selector"/>
+    <block name="messagesBlock" class="Magento\Core\Test\Block\Messages" locator=".messages" strategy="css selector"/>
   </page>
 </config>