Convert the command line dart analyzer to be async.

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java
diff --git a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java
index 6990293689c694f7252692dff67cc3e2f50e3345..4bcf11f1e96bf4c91f2df4a23fcd2894ad94444c 100644
--- a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java
+++ b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/context/AnalysisResult.java
@@ -13,7 +13,6 @@
  */
 package com.google.dart.engine.context;
 
-
 /**
  * Instances of the class {@code AnalysisResult}
  */
@@ -92,4 +91,13 @@ public class AnalysisResult {
   public String getTaskClassName() {
     return taskClassName;
   }
+
+  /**
+   * Return {@code true} if there is more to be performed after the task that was performed.
+   * 
+   * @return {@code true} if there is more to be performed after the task that was performed
+   */
+  public boolean hasMoreWork() {
+    return notices != null;
+  }
 }