Install an uncaught exception handler in Aphlict

Summary:
Ref T5373. This seems to work pretty much correctly.

Also stop popping bubbles and just use the log, since users find the bubbles confusing/not useful and they're not great for developers either.

Future diffs will expose more user-facing stuff.

Test Plan: Added `throw` to AphlictClient.as, got a log in the parent window.

Reviewers: joshuaspence

Reviewed By: joshuaspence

Subscribers: epriestley

Maniphest Tasks: T5373

Differential Revision: https://secure.phabricator.com/D9698

support/aphlict/client/src/Aphlict.as

@@ -34,7 +34,7 @@ package {
       ExternalInterface.call('JX.Aphlict.didReceiveEvent', type, object);
     }
 
-    final protected function error(error:Error):void {
+    final protected function error(error:Object):void {
       this.externalInvoke('error', error.toString());
     }
 

support/aphlict/client/src/AphlictClient.as

@@ -4,7 +4,7 @@ package {
   import flash.external.ExternalInterface;
   import flash.utils.Dictionary;
   import flash.utils.Timer;
-
+  import flash.events.UncaughtErrorEvent;
 
   final public class AphlictClient extends Aphlict {
 
@@ -37,6 +37,10 @@ package {
     public function AphlictClient() {
       super();
 
+      loaderInfo.uncaughtErrorEvents.addEventListener(
+        UncaughtErrorEvent.UNCAUGHT_ERROR,
+        this.uncaughtErrorHandler);
+
       ExternalInterface.addCallback('connect', this.externalConnect);
       ExternalInterface.call(
         'JX.Stratcom.invoke',
@@ -45,6 +49,10 @@ package {
         {});
     }
 
+    private function uncaughtErrorHandler(event:UncaughtErrorEvent):void {
+      this.error(event.error.toString());
+    }
+
     public function externalConnect(
       server:String,
       port:Number,

webroot/rsrc/js/application/aphlict/behavior-aphlict-listen.js

@@ -8,6 +8,7 @@
  *           javelin-dom
  *           javelin-json
  *           javelin-router
+ *           javelin-util
  *           phabricator-notification
  */
 
@@ -54,28 +55,17 @@ JX.behavior('aphlict-listen', function(config) {
   // a request to Phabricator to get notification details.
   function onaphlictmessage(type, message) {
     switch (type) {
-      case 'error':
-        new JX.Notification()
-          .setContent('(Aphlict) ' + message)
-          .alterClassName('jx-notification-error', true)
-          .setDuration(0)
-          .show();
-        break;
-
       case 'receive':
         JX.Stratcom.invoke('aphlict-receive-message', null, message);
         break;
 
       default:
-        if (__DEV__ && config.debug) {
+      case 'error':
+        if (config.debug) {
           var details = message ? JX.JSON.stringify(message) : '';
-
+          JX.log('(Aphlict) [' + type + '] ' + details);
-          new JX.Notification()
-            .setContent('(Aphlict) [' + type + '] ' + details)
-            .alterClassName('jx-notification-debug', true)
-            .setDuration(3000)
-            .show();
         }
+        break;
     }
   }