Fix errors in benchmarks

One notable change is that if the editor has a display update pending,
we wait until it completes before moving on to the next benchmark.

benchmark/benchmark-helper.coffee

@@ -10,7 +10,7 @@ require 'window'
 requireStylesheet "jasmine.css"
 
 # Load TextMate bundles, which specs rely on (but not other packages)
-atom.loadPackages(atom.getAvailableTextMateBundles())
+atom.loadTextMatePackages()
 
 beforeEach ->
   # reset config after each benchmark; don't load or save from/to `config.json`

benchmark/benchmark-suite.coffee

@@ -17,9 +17,15 @@ describe "editor.", ->
     editor = rootView.getActiveEditor()
 
   afterEach ->
-    $(window).off 'beforeunload'
-    window.shutdown()
-    atom.setRootViewStateForPath(rootView.project.getPath(), null)
+    if editor.pendingDisplayUpdate
+      waitsFor "editor to finish rendering", (done) ->
+        editor.on 'editor:display-updated', done
+
+    runs ->
+      projectPath = rootView.project.getPath()
+      $(window).off 'beforeunload'
+      window.shutdown()
+      atom.setRootViewStateForPath(projectPath, null)
 
   describe "keymap.", ->
     event = null

src/app/editor.coffee

@@ -882,6 +882,7 @@ class Editor extends View
     @updateCursorViews()
     @updateSelectionViews()
     @autoscroll(options)
+    @trigger 'editor:display-updated'
 
   updateCursorViews: ->
     if @newCursors.length > 0