Validate that (actual) resynthesized elements have the same runtimeType as originals.

pkg/analyzer/test/src/summary/summary_common.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.summary.summary_common;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
@@ skipping 4749 matching lines @@
   test_field_propagated_type_final_immediate() {
     UnlinkedVariable v =
         serializeClassText('class C { final v = 0; }').fields[0];
     checkLinkedTypeSlot(v.propagatedTypeSlot, 'dart:core', 'dart:core', 'int');
   }
 
   test_field_static() {
     UnlinkedVariable variable =
         serializeClassText('class C { static int i; }').fields[0];
     expect(variable.isStatic, isTrue);
+    expect(variable.constExpr, isNull);
+  }
+
+  test_field_static_final() {
+    UnlinkedVariable variable =
+        serializeClassText('class C { static final int i = 0; }').fields[0];
+    expect(variable.isStatic, isTrue);
+    expect(variable.isFinal, isTrue);
+    expect(variable.constExpr, isNull);
   }
 
   test_fully_linked_references_follow_other_references() {
     if (skipFullyLinkedData) {
       return;
     }
     serializeLibraryText('final x = 0; String y;');
     checkLinkedTypeSlot(unlinkedUnits[0].variables[0].propagatedTypeSlot,
         'dart:core', 'dart:core', 'int');
     checkTypeRef(
@@ skipping 1847 matching lines @@
   final String absoluteUri;
   final String relativeUri;
   final int numTypeParameters;
 
   _PrefixExpectation(this.kind, this.name,
       {this.inLibraryDefiningUnit: false,
       this.absoluteUri,
       this.relativeUri,
       this.numTypeParameters: 0});
 }