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

runtime/vm/object_test.cc

Index: runtime/vm/object_test.cc
diff --git a/runtime/vm/object_test.cc b/runtime/vm/object_test.cc
index 25e7fcbcc6ea44ce26669df35652765b1f56667e..0f2c77622b90ab66c1529b8c6d2265f89f6bd3e6 100644
--- a/runtime/vm/object_test.cc
+++ b/runtime/vm/object_test.cc
@@ -3371,4 +3371,35 @@ TEST_CASE(FunctionSourceFingerprint) {
   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