Generate public static EMPTY_ARRAY fields for each object.

editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java

Index: editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java
diff --git a/editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java b/editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java
index 1b1841f46ec3d4ae78cc14d462a20427b9ee0459..b3a7d771499aa4f41dbf156189d4a084de6d1526 100644
--- a/editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java
+++ b/editor/tools/plugins/com.google.dart.server/src/com/google/dart/server/generated/types/NavigationRegion.java
@@ -31,9 +31,9 @@ import org.apache.commons.lang3.StringUtils;
 public class NavigationRegion {
 
   /**
-   * The length of the region from which the user can navigate.
+   * An empty array of {@link NavigationRegion}s.
    */
-  private final int length;
+  public static final NavigationRegion[] EMPTY_ARRAY = new NavigationRegion[0];
 
   /**
    * The offset of the region from which the user can navigate.
@@ -41,6 +41,11 @@ public class NavigationRegion {
   private final int offset;
 
   /**
+   * The length of the region from which the user can navigate.
+   */
+  private final int length;
+
+  /**
    * The elements to which the given region is bound. By opening the declaration of the elements,
    * clients can implement one form of navigation.
    */