MAGETWO-33061: Fix annotations of the methods that return __()

Author: Dooffy

app/code/Magento/Catalog/Block/Adminhtml/Category/Edit/Form.php

@@ -237,7 +237,7 @@ public function getTabsHtml()
     }
 
     /**
-     * @return \Magento\Framework\Phrase
+     * @return \Magento\Framework\Phrase|string
      */
     public function getHeader()
     {

app/code/Magento/Catalog/Block/Adminhtml/Form/Renderer/Config/YearRange.php

@@ -18,7 +18,7 @@ class YearRange extends Field
 {
     /**
      * @param AbstractElement $element
-     * @return \Magento\Framework\Phrase
+     * @return string
      */
     protected function _getElementHtml(AbstractElement $element)
     {

app/code/Magento/Catalog/Model/Layer/Filter/Price.php

@@ -210,7 +210,7 @@ public function getResetValue()
     /**
      * Get 'clear price' link text
      *
-     * @return \Magento\Framework\Phrase
+     * @return \Magento\Framework\Phrase|bool
      */
     public function getClearLinkText()
     {

app/code/Magento/Centinel/Helper/Data.php

@@ -64,7 +64,7 @@ public function getCmpiValue($fieldName, $value)
      * Return text value for cmpi eci flag field
      *
      * @param string $value
-     * @return \Magento\Framework\Phrase
+     * @return \Magento\Framework\Phrase|string
      */
     private function _getCmpiEciValue($value)
     {

app/code/Magento/DesignEditor/Block/Adminhtml/Editor/Tools/Files/Content.php

@@ -15,7 +15,7 @@ class Content extends \Magento\Theme\Block\Adminhtml\Wysiwyg\Files\Content
     /**
      * Get header text
      *
-     * @return \Magento\Framework\Phrase
+     * @return string
      */
     public function getHeaderText()
     {

app/code/Magento/DesignEditor/Block/Adminhtml/Editor/Tools/Files/Tree.php

@@ -14,7 +14,7 @@ class Tree extends \Magento\Theme\Block\Adminhtml\Wysiwyg\Files\Tree
     /**
      * Override root node name of tree specific to design editor.
      *
-     * @return \Magento\Framework\Phrase
+     * @return string
      */
     public function getRootNodeName()
     {

app/code/Magento/Shipping/Block/Adminhtml/Order/Tracking/View.php

@@ -85,7 +85,7 @@ public function getRemoveUrl($track)
 
     /**
      * @param string $code
-     * @return \Magento\Framework\Phrase|bool
+     * @return \Magento\Framework\Phrase|string|bool
      */
     public function getCarrierTitle($code)
     {