Ensure the classes void and dynamic have empty arrays for fields, functions, etc. Move their Types …

runtime/vm/object_test.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
@@ skipping 3353 matching lines @@
   const Function& test6 = Function::Handle(GetFunction(class_a, "test6"));
   const Function& test7 = Function::Handle(GetFunction(class_a, "test7"));
   EXPECT_EQ(test1.SourceFingerprint(), test2.SourceFingerprint());
   EXPECT_NE(test1.SourceFingerprint(), test3.SourceFingerprint());
   EXPECT_NE(test3.SourceFingerprint(), test4.SourceFingerprint());
   EXPECT_NE(test4.SourceFingerprint(), test5.SourceFingerprint());
   EXPECT_NE(test5.SourceFingerprint(), test6.SourceFingerprint());
   EXPECT_EQ(test6.SourceFingerprint(), test7.SourceFingerprint());
 }
 
+
+TEST_CASE(SpecialClassesHaveEmptyArrays) {
+  ObjectStore* object_store = Isolate::Current()->object_store();
+  Class& cls = Class::Handle();
+  Object& array = Object::Handle();
+
+  cls = object_store->null_class();
+  array = cls.fields();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+  array = cls.functions();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+
+  cls = Object::void_class();
+  array = cls.fields();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+  array = cls.functions();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+
+  cls = Object::dynamic_class();
+  array = cls.fields();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+  array = cls.functions();
+  EXPECT(!array.IsNull());
+  EXPECT(array.IsArray());
+}
+
 }  // namespace dart