Fix for making variable initializer synthetic.

pkg/analyzer/test/src/summary/resynthesize_test.dart

Index: pkg/analyzer/test/src/summary/resynthesize_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_test.dart b/pkg/analyzer/test/src/summary/resynthesize_test.dart
index c1f3cbe7672f0eef18211d6e21a22dd191205793..aedda76bf809b5aa4dcc21a5d3fbe2d8160294c8 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_test.dart
@@ -894,6 +894,7 @@ class ResynthTest extends ResolverTestCase {
     expect(resynthesized, isNotNull, reason: desc);
     expect(resynthesized.nameOffset, original.nameOffset, reason: desc);
     expect(resynthesized.name, original.name, reason: desc);
+    expect(resynthesized.isSynthetic, original.isSynthetic, reason: desc);
     // TODO(scheglov) replace this method with compareFunctionElements()
     // once we resynthesize initializers return types.
   }