Issue 26148. Don't use a current token if it does not match - create a new synthetic.

pkg/analyzer/test/src/task/dart_test.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.test.src.task.dart_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/element.dart';
@@ skipping 2800 matching lines @@
 
     InterfaceType stringType = context.typeProvider.stringType;
     expect(topLevel.type, stringType);
     expect(field.type, stringType);
     expect(fieldDecl.initializer.staticType, stringType);
   }
 }
 
 @reflectiveTest
 class InferStaticVariableTypesInUnitTaskTest extends _AbstractDartTaskTest {
+  @override
+  void setUp() {
+    super.setUp();
+    enableStrongMode();
+  }
+
   test_created_resolved_unit() {
     Source source = newSource(
         '/test.dart',
         r'''
 library lib;
 class A {}
 ''');
     LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
     computeResult(target, RESOLVED_UNIT7);
     expect(outputs[RESOLVED_UNIT7], isNotNull);
@@ skipping 10 matching lines @@
 }
 ''');
     computeResult(new LibrarySpecificUnit(source, source), RESOLVED_UNIT7,
         matcher: isInferStaticVariableTypesInUnitTask);
     CompilationUnit unit = outputs[RESOLVED_UNIT7];
     VariableDeclaration declaration = AstFinder.getFieldInClass(unit, 'M', 'X');
     InterfaceType stringType = context.typeProvider.stringType;
     expect(declaration.element.type, stringType);
   }
 
+  test_perform_hasParseError() {
+    Source source = newSource(
+        '/test.dart',
+        r'''
+@(i $=
+''');
+    LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
+    computeResult(target, RESOLVED_UNIT7);
+    expect(outputs[RESOLVED_UNIT7], isNotNull);
+    expect(outputs[CREATED_RESOLVED_UNIT7], isTrue);
+  }
+
   void test_perform_nestedDeclarations() {
     enableStrongMode();
     AnalysisTarget source = newSource(
         '/test.dart',
         '''
 var f = (int x) {
   int squared(int value) => value * value;
   var xSquared = squared(x);
   return xSquared;
 };
@@ skipping 2223 matching lines @@
   /**
    * Fill [errorListener] with [result] errors in the current [task].
    */
   void _fillErrorListener(ResultDescriptor<List<AnalysisError>> result) {
     List<AnalysisError> errors = task.outputs[result];
     expect(errors, isNotNull, reason: result.name);
     errorListener = new GatheringErrorListener();
     errorListener.addAll(errors);
   }
 }