Make SdkLibrary.shortName consistently include 'dart:'

pkg/analysis_server/test/edit/fixes_test.dart

Index: pkg/analysis_server/test/edit/fixes_test.dart
diff --git a/pkg/analysis_server/test/edit/fixes_test.dart b/pkg/analysis_server/test/edit/fixes_test.dart
index 58f4b540ed999300e67651d8cdd726e7bce63164..2d2f1c085aa3e90ee9f38d2bc24124428c0f6ad2 100644
--- a/pkg/analysis_server/test/edit/fixes_test.dart
+++ b/pkg/analysis_server/test/edit/fixes_test.dart
@@ -29,6 +29,25 @@ class FixesTest extends AbstractAnalysisTest {
     handler = new EditDomainHandler(server);
   }
 
+  Future test_fixUndefinedClass() {
+    addTestFile('''
+main() {
+  Future<String> x = null;
+}
+''');
+    return waitForTasksFinished().then((_) {
+      List<AnalysisErrorFixes> errorFixes = _getFixesAt('Future<String>');
+      expect(errorFixes, hasLength(1));
+      AnalysisError error = errorFixes[0].error;
+      expect(error.severity, AnalysisErrorSeverity.WARNING);
+      expect(error.type, AnalysisErrorType.STATIC_WARNING);
+      List<SourceChange> fixes = errorFixes[0].fixes;
+      expect(fixes, hasLength(2));
+      expect(fixes[0].message, matches('Import library'));
+      expect(fixes[1].message, matches('Create class'));
+    });
+  }
+
   Future test_hasFixes() {
     addTestFile('''
 foo() {