Store initializer expressions for untyped vars/fields in summaries.

pkg/analyzer/test/src/summary/resynthesize_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 test.src.serialization.elements_test;
 
 import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/constant/value.dart';
@@ skipping 2826 matching lines @@
 }''');
   }
 
   test_field_propagatedType_final_noDep_static() {
     checkLibrary('''
 class C {
   static final x = 0;
 }''');
   }
 
+  test_field_static_final_untyped() {
+    checkLibrary('class C { static final x = 0; }');
+  }
+
+  test_field_untyped() {
+    checkLibrary('class C { var x = 0; }');
+  }
+
   test_function_documented() {
     checkLibrary('''
 // Extra comment so doc comment offset != 0
 /**
  * Docs
  */
 f() {}''');
   }
 
   test_function_entry_point() {
@@ skipping 1241 matching lines @@
 /**
  * Docs
  */
 var x;''');
   }
 
   test_variable_final() {
     checkLibrary('final int x = 0;');
   }
 
+  test_variable_final_top_level_untyped() {
+    checkLibrary('final v = 0;');
+  }
+
   test_variable_getterInLib_setterInPart() {
     addSource('/a.dart', 'part of my.lib; void set x(int _) {}');
     checkLibrary('library my.lib; part "a.dart"; int get x => 42;');
   }
 
   test_variable_getterInPart_setterInLib() {
     addSource('/a.dart', 'part of my.lib; int get x => 42;');
     checkLibrary('library my.lib; part "a.dart"; void set x(int _) {}');
   }
 
@@ skipping 110 matching lines @@
       fail('Unexpectedly tried to get unlinked summary for $uri');
     }
     return serializedUnit;
   }
 
   @override
   bool hasLibrarySummary(String uri) {
     return true;
   }
 }