Resynthesize values of final fields of classes with const constructors.

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

Index: pkg/analyzer/test/src/summary/resynthesize_common.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_common.dart b/pkg/analyzer/test/src/summary/resynthesize_common.dart
index bd1c556a1ce8af1fd7f514c343471792ad62298c..3dd04d41b917e7a3b0e9a96994ab2c663bd3e59a 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_common.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_common.dart
@@ -2454,6 +2454,21 @@ final dynamic f;
     }
   }
 
+  test_const_finalField_hasConstConstructor() async {
+    var library = await checkLibrary(r'''
+class C {
+  final int f = 42;
+  const C();
+}
+''');
+    checkElementText(library, r'''
+class C {
+  final int f = 42;
+  const C();
+}
+''');
+  }
+
   test_const_invalid_field_const() async {
     variablesWithNotConstInitializers.add('f');
     var library = await checkLibrary(r'''