Make SdkLibrary.shortName consistently include 'dart:'

pkg/analysis_server/test/services/correction/fix_test.dart

Index: pkg/analysis_server/test/services/correction/fix_test.dart
diff --git a/pkg/analysis_server/test/services/correction/fix_test.dart b/pkg/analysis_server/test/services/correction/fix_test.dart
index 1f6be7aa264a105f41e5b048816f800582c0ccbf..fa6530d8495a7c0965a6ac1d1fbf02e952d086e7 100644
--- a/pkg/analysis_server/test/services/correction/fix_test.dart
+++ b/pkg/analysis_server/test/services/correction/fix_test.dart
@@ -1024,7 +1024,6 @@ main() {
   }
 
   void test_importLibrarySdk_withTopLevelVariable() {
-    _ensureSdkMathLibraryResolved();
     _indexTestUnit('''
 main() {
   print(PI);
@@ -1041,7 +1040,6 @@ main() {
   }
 
   void test_importLibrarySdk_withType_invocationTarget() {
-    _ensureSdkAsyncLibraryResolved();
     _indexTestUnit('''
 main() {
   Future.wait(null);
@@ -1057,7 +1055,6 @@ main() {
   }
 
   void test_importLibrarySdk_withType_typeAnnotation() {
-    _ensureSdkAsyncLibraryResolved();
     _indexTestUnit('''
 main() {
   Future f = null;
@@ -1073,7 +1070,6 @@ main() {
   }
 
   void test_importLibrarySdk_withType_typeAnnotation_PrefixedIdentifier() {
-    _ensureSdkAsyncLibraryResolved();
     _indexTestUnit('''
 main() {
   Future.wait;
@@ -1813,22 +1809,6 @@ main() {
     }
   }
 
-  /**
-   * We search for elements only already resolved lbiraries, and we use
-   * `dart:async` elements in tests.
-   */
-  void _ensureSdkAsyncLibraryResolved() {
-    resolveLibraryUnit(addSource('/other.dart', 'import "dart:async";'));
-  }
-
-  /**
-   * We search for elements only already resolved lbiraries, and we use
-   * `dart:async` elements in tests.
-   */
-  void _ensureSdkMathLibraryResolved() {
-    resolveLibraryUnit(addSource('/other.dart', 'import "dart:math";'));
-  }
-
   AnalysisError _findErrorToFix() {
     List<AnalysisError> errors = context.computeErrors(testSource);
     expect(