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

Index: pkg/analyzer/test/src/task/dart_test.dart
diff --git a/pkg/analyzer/test/src/task/dart_test.dart b/pkg/analyzer/test/src/task/dart_test.dart
index b0352cb3215e19fa9882bde3ecd15218302b1c85..a6d9448920cd35cb0f1ae31c3b990d13ea1b8197 100644
--- a/pkg/analyzer/test/src/task/dart_test.dart
+++ b/pkg/analyzer/test/src/task/dart_test.dart
@@ -2818,6 +2818,12 @@ class C {
 
 @reflectiveTest
 class InferStaticVariableTypesInUnitTaskTest extends _AbstractDartTaskTest {
+  @override
+  void setUp() {
+    super.setUp();
+    enableStrongMode();
+  }
+
   test_created_resolved_unit() {
     Source source = newSource(
         '/test.dart',
@@ -2848,6 +2854,18 @@ class M {
     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(