Fix 2 failing tests on windows.

editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/DartCore.java

Index: editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/DartCore.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/DartCore.java	(revision 16302)
+++ editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/DartCore.java	(working copy)
@@ -19,7 +19,6 @@
 import com.google.dart.tools.core.analysis.index.AnalysisIndexManager;
 import com.google.dart.tools.core.internal.MessageConsoleImpl;
 import com.google.dart.tools.core.internal.builder.RootArtifactProvider;
-import com.google.dart.tools.core.internal.directoryset.DirectorySetManager;
 import com.google.dart.tools.core.internal.model.DartModelImpl;
 import com.google.dart.tools.core.internal.model.DartModelManager;
 import com.google.dart.tools.core.internal.model.DartProjectImpl;
@@ -557,13 +556,6 @@
   }
 
   /**
-   * Return the static {@link DirectorySetManager} instance.
-   */
-  public static DirectorySetManager getDirectorySetManager() {
-    return DirectorySetManager.getInstance();
-  }
-
-  /**
    * Return the workspace root default charset encoding.
    * 
    * @return the name of the default charset encoding for the workspace root
@@ -1196,10 +1188,6 @@
     PLUG_IN = this;
   }
 
-  public boolean isAutoRunPubEnabled() {
-    return DartCore.getPlugin().getPrefs().getBoolean(PUB_AUTO_RUN_PREFERENCE, true);
-  }
-
   /**
    * Use dart2js if the SDK is present.
    */
@@ -1238,6 +1226,10 @@
     return projectScope.getNode(PLUGIN_ID);
   }
 
+  public boolean isAutoRunPubEnabled() {
+    return DartCore.getPlugin().getPrefs().getBoolean(PUB_AUTO_RUN_PREFERENCE, true);
+  }
+
   @Override
   public void sdkUpdated(DartSdk sdk) {
     Job job = new CleanLibrariesJob(true);