Implement AnalysisContext.ensureResolvedDartUnits().

pkg/analyzer/test/src/task/dart_work_manager_test.dart

Index: pkg/analyzer/test/src/task/dart_work_manager_test.dart
diff --git a/pkg/analyzer/test/src/task/dart_work_manager_test.dart b/pkg/analyzer/test/src/task/dart_work_manager_test.dart
index b11c55f3734c56e866a7a4ee5b0a24c8b6b8c53c..8497f2cf2420378d9e5b145e3b7a2d639ac9bfce 100644
--- a/pkg/analyzer/test/src/task/dart_work_manager_test.dart
+++ b/pkg/analyzer/test/src/task/dart_work_manager_test.dart
@@ -190,6 +190,40 @@ class DartWorkManagerTest {
     expect(request, isNull);
   }
 
+  void test_getNextResult_hasPriority_firstIsError() {
+    manager.addPriorityResult(source1, SOURCE_KIND);
+    manager.addPriorityResult(source2, SOURCE_KIND);
+    expect(manager.priorityResultQueue, unorderedEquals([
+      new TargetedResult(source1, SOURCE_KIND),
+      new TargetedResult(source2, SOURCE_KIND)
+    ]));
+    // configure state and get next result
+    entry1.setErrorState(caughtException, [SOURCE_KIND]);
+    TargetedResult request = manager.getNextResult();
+    expect(request.target, source2);
+    expect(request.result, SOURCE_KIND);
+    // source1 is out, source2 is waiting
+    expect(manager.priorityResultQueue,
+        unorderedEquals([new TargetedResult(source2, SOURCE_KIND)]));
+  }
+
+  void test_getNextResult_hasPriority_firstIsValid() {
+    manager.addPriorityResult(source1, SOURCE_KIND);
+    manager.addPriorityResult(source2, SOURCE_KIND);
+    expect(manager.priorityResultQueue, unorderedEquals([
+      new TargetedResult(source1, SOURCE_KIND),
+      new TargetedResult(source2, SOURCE_KIND)
+    ]));
+    // configure state and get next result
+    entry1.setValue(SOURCE_KIND, SourceKind.LIBRARY, []);
+    TargetedResult request = manager.getNextResult();
+    expect(request.target, source2);
+    expect(request.result, SOURCE_KIND);
+    // source1 is out, source2 is waiting
+    expect(manager.priorityResultQueue,
+        unorderedEquals([new TargetedResult(source2, SOURCE_KIND)]));
+  }
+
   void test_getNextResult_hasUnknown_firstIsError() {
     entry1.setErrorState(caughtException, [SOURCE_KIND]);
     manager.unknownSourceQueue.addAll([source1, source2]);