increase timeout for intermittently failing placeholder_test.js

lib/ace/edit_session.js

@@ -969,10 +969,8 @@ var EditSession = function(text, mode) {
         try {
             this.$worker = this.$mode.createWorker(this);
         } catch (e) {
-            if (typeof console == "object") {
-                console.log("Could not load worker");
-                console.log(e);
-            }    
+            if (typeof console == "object" && console.error)
+                console.log("Could not load worker", e);
             this.$worker = null;
         }
     };

lib/ace/placeholder_test.js

@@ -43,6 +43,7 @@ var assert = require("./test/assertions");
 var JavaScriptMode = require("./mode/javascript").Mode;
 var PlaceHolder = require("./placeholder").PlaceHolder;
 var UndoManager = require("./undomanager").UndoManager;
+require("./multi_select")
 
 module.exports = {
 
@@ -89,7 +90,7 @@ module.exports = {
             editor.insert('v');
             assert.equal(session.doc.getValue(), "var v$a = 10;\nconsole.log(v$a, v$a);");
             next();
-        }, 10);
+        }, 20);
     },
 
    "test: detaching placeholder" : function() {

lib/ace/test/all_browser.js

@@ -47,6 +47,7 @@ var testNames = [
     "ace/multi_select_test",
     "ace/mouse/mouse_handler_test",
     "ace/occur_test",
+    "ace/placeholder_test",
     "ace/range_test",
     "ace/range_list_test",
     "ace/search_test",