Show link to Epics list filtered by label

app/views/shared/_label.html.haml

@@ -2,6 +2,7 @@
 - status = label_subscription_status(label, @project).inquiry if current_user
 - subject = local_assigns[:subject]
 - toggle_subscription_path = toggle_subscription_label_path(label, @project) if current_user
+- show_label_epics_link = @group&.feature_available?(:epics)
 - show_label_merge_requests_link = show_label_issuables_link?(label, :merge_requests, project: @project)
 - show_label_issues_link = show_label_issuables_link?(label, :issues, project: @project)
 
@@ -14,6 +15,10 @@
       = icon('caret-down')
     .dropdown-menu.dropdown-menu-align-right
       %ul
+        - if show_label_epics_link
+          %li
+            = link_to group_epics_path(@group, label_name:[label.name]) do
+              View epics
         - if show_label_merge_requests_link
           %li
             = link_to_label(label, subject: subject, type: :merge_request) do

app/views/shared/_label_row.html.haml

 - subject = local_assigns[:subject]
+- show_label_epics_link = @group&.feature_available?(:epics)
 - show_label_issues_link = show_label_issuables_link?(label, :issues, project: @project)
 - show_label_merge_requests_link = show_label_issuables_link?(label, :merge_requests, project: @project)
 
@@ -23,6 +24,9 @@
       .description-text
         = markdown_field(label, :description)
     .hidden-xs.hidden-sm
+      - if show_label_epics_link
+        = link_to 'Epics', group_epics_path(@group, label_name:[label.name])
+        ·
       - if show_label_issues_link
         = link_to_label(label, subject: subject) { 'Issues' }
       - if show_label_merge_requests_link