diff --git a/core/includes/pager.inc b/core/includes/pager.inc
index 9ead587..cef12ac 100644
--- a/core/includes/pager.inc
+++ b/core/includes/pager.inc
@@ -217,33 +217,39 @@ function template_preprocess_pager(&$variables) {
   // Create the "first" and "previous" links if we are not on the first page.
   if ($pager_page_array[$element] > 0) {
     $li_first = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__first'
       '#type' => 'link',
       '#title' => $tags[0],
       '#href' => $current_path,
-      // @todo is '#element' making any sense here?
-      '#element' => $element,
       '#options' => array(
         'query' => pager_query_add_page($parameters, $element, 0),
         'attributes' => array(
           'title' => t('Go to first page'),
           'rel' => 'first',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'first',
+          'element' => $element,
+        ),
       ),
     );
     $li_previous = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__previous'
       '#type' => 'link',
       '#title' => $tags[1],
       '#href' => $current_path,
-      // @todo is '#element' making any sense here?
-      '#element' => $element,
       '#options' => array(
         'query' => pager_query_add_page($parameters, $element, $pager_page_array[$element] - 1),
         'attributes' => array(
           'title' => t('Go to previous page'),
           'rel' => 'prev',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'previous',
+          'element' => $element,
+        ),
       ),
     );
   }
@@ -251,33 +257,39 @@ function template_preprocess_pager(&$variables) {
   // Create the "last" and "next" links if we are not on the last page.
   if ($pager_page_array[$element] < ($pager_total[$element] - 1)) {
     $li_next = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__previous'
       '#type' => 'link',
       '#title' => $tags[3],
       '#href' => $current_path,
-      // @todo is '#element' making any sense here?
-      '#element' => $element,
       '#options' => array(
         'query' => pager_query_add_page($parameters, $element, $pager_page_array[$element] + 1),
         'attributes' => array(
           'title' => t('Go to next page'),
           'rel' => 'next',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'next',
+          'element' => $element,
+        ),
       ),
     );
     $li_last = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__last'
       '#type' => 'link',
       '#title' => $tags[4],
       '#href' => $current_path,
-      // @todo is '#element' making any sense here?
-      '#element' => $element,
       '#options' => array(
         'query' => pager_query_add_page($parameters, $element, $pager_total[$element] - 1),
         'attributes' => array(
           'title' => t('Go to last page'),
           'rel' => 'last',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'last',
+          'element' => $element,
+        ),
       ),
     );
   }
@@ -311,7 +323,6 @@ function template_preprocess_pager(&$variables) {
           $items[] = array(
             '#wrapper_attributes' => array('class' => array('pager-item')),
             'link' => array(
-              // @todo how to refactor theme suggestions '#theme' => 'link__pager'
               '#type' => 'link',
               '#title' => $i,
               '#href' => $current_path,
@@ -320,13 +331,14 @@ function template_preprocess_pager(&$variables) {
                 'attributes' => array(
                   'title' => t('Go to page @number', array('@number' => $i)),
                 ),
+                // Below is ignored by default, supplied to support hook_link_alter
+                // implementations.
+                'pager_context' => array(
+                  'link_type' => 'item',
+                  'element' => $element,
+                  'interval' => ($pager_current - $i),
+                ),
               ),
-              // @todo is '#element' making any sense here?
-              '#element' => $element,
-              // Specify how many pages are between this item and the current page.
-              // Ignored by default, supplied for alternative implementations.
-              // @todo is '#interval' making any sense here?
-              '#interval' => ($pager_current - $i),
             ),
           );
         }
@@ -340,7 +352,6 @@ function template_preprocess_pager(&$variables) {
           $items[] = array(
             '#wrapper_attributes' => array('class' => array('pager-item')),
             'link' => array(
-              // @todo how to refactor theme suggestions '#theme' => 'link__pager'
               '#type' => 'link',
               '#title' => $i,
               '#href' => $current_path,
@@ -349,13 +360,14 @@ function template_preprocess_pager(&$variables) {
                 'attributes' => array(
                   'title' => t('Go to page @number', array('@number' => $i)),
                 ),
+                // Below is ignored by default, supplied to support hook_link_alter
+                // implementations.
+                'pager_context' => array(
+                  'link_type' => 'item',
+                  'element' => $element,
+                  'interval' => ($i - $pager_current),
+                ),
               ),
-              // @todo is '#element' making any sense here?
-              '#element' => $element,
-              // Specify how many pages are between this item and the current page.
-              // Ignored by default, supplied for alternative implementations.
-              // @todo is '#interval' making any sense here?
-              '#interval' => ($i - $pager_current),
             ),
           );
         }
diff --git a/core/modules/system/templates/pager.html.twig b/core/modules/system/templates/pager.html.twig
index 92208bc..47b20a7 100644
--- a/core/modules/system/templates/pager.html.twig
+++ b/core/modules/system/templates/pager.html.twig
@@ -6,7 +6,6 @@
  * Available variables:
  * - items: List of pager items.
  *
- * @see template_preprocess()
  * @see template_preprocess_pager()
  *
  * @ingroup themeable
diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index c4a4997..411b776 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -1170,7 +1170,6 @@ function theme_views_mini_pager($vars) {
   $li_previous = array();
   if ($pager_total[$element] > 1 && $pager_page_array[$element] > 0) {
     $li_previous = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__previous'
       '#type' => 'link',
       '#title' => $tags[1],
       '#href' => $current_path,
@@ -1180,6 +1179,13 @@ function theme_views_mini_pager($vars) {
           'title' => t('Go to previous page'),
           'rel' => 'prev',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'previous',
+          'element' => $element,
+          'interval' => -1,
+        ),
       ),
     );
   }
@@ -1187,7 +1193,6 @@ function theme_views_mini_pager($vars) {
   $li_next = array();
   if ($pager_page_array[$element] < ($pager_total[$element] - 1)) {
     $li_next = array(
-      // @todo how to refactor theme suggestions '#theme' => 'link__pager__next'
       '#type' => 'link',
       '#title' => $tags[3],
       '#href' => $current_path,
@@ -1197,6 +1202,13 @@ function theme_views_mini_pager($vars) {
           'title' => t('Go to next page'),
           'rel' => 'next',
         ),
+        // Below is ignored by default, supplied to support hook_link_alter
+        // implementations.
+        'pager_context' => array(
+          'link_type' => 'previous',
+          'element' => $element,
+          'interval' => 1,
+        ),
       ),
     );
   }