Link to branches from MR "Request to merge X into Y" sentence

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

@@ -26,9 +26,10 @@
               %li= link_to "Plain Diff",    merge_request_path(@merge_request, format: :diff)
       .normal
         %span Request to merge
-        %span.label-branch #{source_branch_with_namespace(@merge_request)}
+        = link_to source_branch_with_namespace(@merge_request), namespace_project_commits_path(@merge_request.source_project.namespace, @merge_request.source_project, @merge_request.source_branch), class: "label-branch"
         %span into
-        %span.label-branch #{@merge_request.target_branch}
+        = link_to namespace_project_commits_path(@project.namespace, @project, @merge_request.target_branch), class: "label-branch" do
+          = @merge_request.target_branch
 
     = render "projects/merge_requests/show/how_to_merge"
     = render "projects/merge_requests/widget/show.html.haml"

app/views/projects/merge_requests/widget/_merged.html.haml

@@ -10,7 +10,8 @@
       - if !@merge_request.source_branch_exists?
         = succeed '.' do
           The changes were merged into
-          %span.label-branch= @merge_request.target_branch
+          = link_to namespace_project_commits_path(@project.namespace, @project, @merge_request.target_branch), class: "label-branch" do
+            = @merge_request.target_branch
         The source branch has been removed.
 
       - elsif can_remove_branch?(@merge_request.source_project, @merge_request.source_branch)
@@ -18,7 +19,8 @@
           %p
             = succeed '.' do
               The changes were merged into
-              %span.label-branch= @merge_request.target_branch
+              = link_to namespace_project_commits_path(@project.namespace, @project, @merge_request.target_branch), class: "label-branch" do
+                = @merge_request.target_branch
             You can remove the source branch now.
           = link_to namespace_project_branch_path(@merge_request.source_project.namespace, @merge_request.source_project, @merge_request.source_branch), remote: true, method: :delete, class: "btn btn-primary btn-sm remove_source_branch" do
             %i.fa.fa-times