Issue 26096. Explicitly compute the result that ensures that directives are resolved in units.

pkg/analyzer/lib/src/summary/summary_sdk.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.src.summary.summary_sdk;
 
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/context/cache.dart' show CacheEntry;
 import 'package:analyzer/src/context/context.dart';
@@ skipping 76 matching lines @@
         return false;
       } else {
 //        throw new UnimplementedError('$result of $target');
       }
     }
     if (target is LibrarySpecificUnit) {
       if (target.library == null || !target.library.isInSystemLibrary) {
         return false;
       }
       if (result == CREATED_RESOLVED_UNIT1 ||
-          result == CREATED_RESOLVED_UNIT2 ||
           result == CREATED_RESOLVED_UNIT3 ||
           result == CREATED_RESOLVED_UNIT4 ||
           result == CREATED_RESOLVED_UNIT5 ||
           result == CREATED_RESOLVED_UNIT6 ||
           result == CREATED_RESOLVED_UNIT7 ||
           result == CREATED_RESOLVED_UNIT8 ||
-          result == CREATED_RESOLVED_UNIT9) {
+          result == CREATED_RESOLVED_UNIT9 ||
+          result == CREATED_RESOLVED_UNIT10) {
         entry.setValue(result, true, TargetedResult.EMPTY_LIST);
         return true;
       }
       if (result == COMPILATION_UNIT_ELEMENT) {
         String libraryUri = target.library.uri.toString();
         String unitUri = target.unit.uri.toString();
         CompilationUnitElement unit = resynthesizer.getElement(
             new ElementLocationImpl.con3(<String>[libraryUri, unitUri]));
         if (unit != null) {
           entry.setValue(result, unit, TargetedResult.EMPTY_LIST);
@@ skipping 303 matching lines @@
    * throw a [StateError] if there is no class with the given name.
    */
   InterfaceType _getType(LibraryElement library, String name) {
     Element element = library.getType(name);
     if (element == null) {
       throw new StateError("No definition of type $name");
     }
     return (element as ClassElement).type;
   }
 }