- Added missing file from #302054

modules/node/content_types.js

+Drupal.behaviors.contentTypes = {
+  attach: function() {
+    if ($('#edit-type').val() == $('#edit-name').val().toLowerCase().replace(/[^a-z0-9]+/g, '_').replace(/_+/g, '_') || $('#edit-type').val() == '') {
+      $('#edit-type-wrapper').hide();
+      $('#edit-name').keyup(function() {
+        var machine = $(this).val().toLowerCase().replace(/[^a-z0-9]+/g, '_').replace(/_+/g, '_');
+        if (machine != '_' && machine != '') {
+          $('#edit-type').val(machine);
+          $('#node-type-name-suffix').empty().append(' Machine name: ' + machine + ' [').append($('<a href="#">'+ Drupal.t('Edit') +'</a>').click(function() {
+            $('#edit-type-wrapper').show();
+            $('#node-type-name-suffix').hide();
+            $('#edit-name').unbind('keyup');
+            return false;
+          })).append(']');
+        }
+        else {
+          $('#edit-type').val(machine);
+          $('#node-type-name-suffix').text('');
+        }
+      });
+      $('#edit-name').keyup();
+    }
+  }
+};