Use eye-slash icon on confidential issues instead of lock icon

app/views/projects/issues/_issue.html.haml

@@ -5,16 +5,15 @@
 
   .issue-title
     %span.issue-title-text
+      - if issue.confidential?
+        = icon('eye-slash')
+
       = link_to_gfm issue.title, issue_path(issue), class: "title"
     %ul.controls.light
       - if issue.closed?
         %li
           CLOSED
 
-      - if issue.confidential?
-        %li
-          = icon('lock')
-
       - if issue.assignee
         %li
           = link_to_member(@project, issue.assignee, name: false, title: "Assigned to :name")

app/views/projects/issues/show.html.haml

@@ -23,7 +23,7 @@
 
     .issue-meta
       - if @issue.confidential
-        = icon('lock')
+        = icon('eye-slash')
       %strong.identifier
         Issue ##{@issue.iid}
       %span.creator
@@ -52,7 +52,6 @@
           = icon('pencil-square-o')
           Edit
 
-
   .issue-details.issuable-details
     .detail-page-description.content-block
       %h2.title

app/views/search/results/_issue.html.haml

 .search-result-row
   %h4
     - if issue.confidential?
-      = icon('lock')
+      = icon('eye-slash')
     = link_to [issue.project.namespace.becomes(Namespace), issue.project, issue] do
       %span.term.str-truncated= issue.title
     .pull-right ##{issue.iid}