Fix Mac IA32 build breakage

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 "vm/compiler.h"
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "include/dart_tools_api.h"
@@ skipping 7142 matching lines @@
 void NewNativePort_send123(Dart_Port dest_port_id,
                            Dart_CObject* message,
                            void* peer) {
   // Gets a send port message.
   EXPECT_NOTNULL(message);
   EXPECT_EQ(Dart_CObject_kArray, message->type);
   EXPECT_EQ(Dart_CObject_kSendPort, message->value.as_array.values[0]->type);
 
   // Check peer validity.
   EXPECT_NOTNULL(peer);
-  EXPECT_EQ(0xDEADBEEF, *static_cast<intptr_t*>(peer));
+  EXPECT_EQ(static_cast<intptr_t>(0xDEADBEEF), *static_cast<intptr_t*>(peer));

[Florian Schneider, 2017/01/30 22:13:23]

I think the l-suffix should work, but have not confirmed it: 0xDEADBEEFl

   *static_cast<intptr_t*>(peer) = 123;
 
   // Post integer value.
   Dart_CObject* response =
       reinterpret_cast<Dart_CObject*>(Dart_ScopeAllocate(sizeof(Dart_CObject)));
   response->type = Dart_CObject_kInt32;
   response->value.as_int32 = 123;
   Dart_PostCObject(message->value.as_array.values[0]->value.as_send_port.id,
                    response);
 }
 
 
 void NewNativePort_send321(Dart_Port dest_port_id,
                            Dart_CObject* message,
                            void* peer) {
   // Gets a null message.
   EXPECT_NOTNULL(message);
   EXPECT_EQ(Dart_CObject_kArray, message->type);
   EXPECT_EQ(Dart_CObject_kSendPort, message->value.as_array.values[0]->type);
 
   // Check peer validity.
   EXPECT_NOTNULL(peer);
-  EXPECT_EQ(0xDEADBEEF, *static_cast<intptr_t*>(peer));
+  EXPECT_EQ(static_cast<intptr_t>(0xDEADBEEF), *static_cast<intptr_t*>(peer));
   *static_cast<intptr_t*>(peer) = 321;
 
   // Post integer value.
   Dart_CObject* response =
       reinterpret_cast<Dart_CObject*>(Dart_ScopeAllocate(sizeof(Dart_CObject)));
   response->type = Dart_CObject_kInt32;
   response->value.as_int32 = 321;
   Dart_PostCObject(message->value.as_array.values[0]->value.as_send_port.id,
                    response);
 }
@@ skipping 2739 matching lines @@
   EXPECT_VALID(result);
   result = Dart_FinalizeLoading(false);
   EXPECT_VALID(result);
   result = Dart_Invoke(lib, NewString("foozoo"), 0, NULL);
   EXPECT(Dart_IsError(result));
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart