Add a function Dart_AllocateWithNativeFields which allocates an object and sets the native fields i…

runtime/vm/dart_api_impl_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 "bin/builtin.h"
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
@@ skipping 5298 matching lines @@
 
 static intptr_t kNativeArgumentNativeField1Value = 30;
 static intptr_t kNativeArgumentNativeField2Value = 40;
 static intptr_t native_arg_str_peer = 100;
 static void NativeArgumentCreate(Dart_NativeArguments args) {
   Dart_Handle lib = Dart_LookupLibrary(NewString(TestCase::url()));
   Dart_Handle type = Dart_GetType(lib, NewString("MyObject"), 0, NULL);
   EXPECT_VALID(type);
 
   // Allocate without a constructor.
-  Dart_Handle obj = Dart_Allocate(type);
+  const int num_native_fields = 2;
+  const intptr_t native_fields[] = {
+    kNativeArgumentNativeField1Value,
+    kNativeArgumentNativeField2Value
+  };
+  // Allocate and Setup native fields.
+  Dart_Handle obj = Dart_AllocateWithNativeFields(type,
+                                                  num_native_fields,
+                                                  native_fields);
   EXPECT_VALID(obj);
 
-  // Setup native fields.
-  Dart_SetNativeInstanceField(obj, 0, kNativeArgumentNativeField1Value);
-  Dart_SetNativeInstanceField(obj, 1, kNativeArgumentNativeField2Value);
   kNativeArgumentNativeField1Value *= 2;
   kNativeArgumentNativeField2Value *= 2;
   Dart_SetReturnValue(args, obj);
 }
 
 
 static void NativeArgumentAccess(Dart_NativeArguments args) {
   const int kNumNativeFields = 2;
 
   // Test different argument types with a valid descriptor set.
@@ skipping 3172 matching lines @@
                                    NewString("main"),
                                    1,
                                    dart_args);
   int64_t value = 0;
   result = Dart_IntegerToInt64(result, &value);
   EXPECT_VALID(result);
   EXPECT_EQ(6, value);
 }
 
 }  // namespace dart