Reduce MR/issue duplication

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

@@ -12,10 +12,7 @@
     .col-md-9
       .votes-holder.pull-right
         #votes= render 'votes/votes_block', votable: @issue
-      .participants
-        %span= pluralize(@participants.count, 'participant')
-        - @participants.each do |participant|
-          = link_to_member(@project, participant, name: false, size: 24)
+      = render "shared/issuable/participants"
     .col-md-3
       .input-group.cross-project-reference
         %span#cross-project-reference.slead.has_tooltip{title: 'Cross-project reference'}

app/views/projects/merge_requests/_discussion.html.haml

@@ -12,7 +12,7 @@
     .col-md-9
       .votes-holder.pull-right
         #votes= render 'votes/votes_block', votable: @merge_request
-      = render "projects/merge_requests/show/participants"
+      = render "shared/issuable/participants"
     .col-md-3
       .input-group.cross-project-reference
         %span#cross-project-reference.slead.has_tooltip{title: 'Cross-project reference'}
@@ -21,7 +21,7 @@
 
 .row
   %section.col-md-9
-    = render "projects/notes/notes_with_form"
+    .voting_notes#notes= render "projects/notes/notes_with_form"
   %aside.col-md-3
     .issuable-affix
       .context

app/views/shared/issuable/_participants.html.haml

@@ -1,4 +1,5 @@
 .participants
-  %span #{@participants.count} participants
+  %span
+    = pluralize @participants.count, "participant"
   - @participants.each do |participant|
     = link_to_member(@project, participant, name: false, size: 24)