Add attributions so printf like functions can have their arguments checked.

runtime/vm/snapshot_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 "include/dart_debugger_api.h"
 #include "platform/assert.h"
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_message.h"
@@ skipping 782 matching lines @@
 
   // Start an Isolate, load a script and create a full snapshot.
   Timer timer1(true, "Snapshot_test");
   timer1.Start();
   {
     TestIsolateScope __test_isolate__;
 
     // Create a test library and Load up a test script in it.
     TestCase::LoadTestScript(kScriptChars, NULL);
     timer1.Stop();
-    OS::PrintErr("Without Snapshot: %dus\n", timer1.TotalElapsedTime());
+    OS::PrintErr("Without Snapshot: %"Pd64"us\n", timer1.TotalElapsedTime());
 
     // Write snapshot with object content.
     Isolate* isolate = Isolate::Current();
     Zone zone(isolate);
     HandleScope scope(isolate);
     FullSnapshotWriter writer(&buffer, &malloc_allocator);
     writer.WriteFullSnapshot();
   }
 
   // Now Create another isolate using the snapshot and execute a method
   // from the script.
   Timer timer2(true, "Snapshot_test");
   timer2.Start();
   TestCase::CreateTestIsolateFromSnapshot(buffer);
   {
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
     timer2.Stop();
-    OS::PrintErr("From Snapshot: %dus\n", timer2.TotalElapsedTime());
+    OS::PrintErr("From Snapshot: %"Pd64"us\n", timer2.TotalElapsedTime());
 
     // Invoke a function which returns an object.
     Dart_Handle cls =
         Dart_GetClass(TestCase::lib(), Dart_NewString("FieldsTest"));
     result = Dart_Invoke(cls, Dart_NewString("testMain"), 0, NULL);
     EXPECT_VALID(result);
     Dart_ExitScope();
   }
   Dart_ShutdownIsolate();
   free(buffer);
@@ skipping 18 matching lines @@
     TestIsolateScope __test_isolate__;
 
     Isolate* isolate = Isolate::Current();
     Zone zone(isolate);
     HandleScope scope(isolate);
 
     // Create a test library and Load up a test script in it.
     Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
     ClassFinalizer::FinalizePendingClasses();
     timer1.Stop();
-    OS::PrintErr("Without Snapshot: %dus\n", timer1.TotalElapsedTime());
+    OS::PrintErr("Without Snapshot: %"Pd64"us\n", timer1.TotalElapsedTime());
 
     // Write snapshot with object content.
     FullSnapshotWriter writer(&buffer, &malloc_allocator);
     writer.WriteFullSnapshot();
 
     // Invoke a function which returns an object.
     Dart_Handle cls = Dart_GetClass(lib, Dart_NewString("FieldsTest"));
     Dart_Handle result = Dart_Invoke(cls, Dart_NewString("testMain"), 0, NULL);
     EXPECT_VALID(result);
   }
 
   // Now Create another isolate using the snapshot and execute a method
   // from the script.
   Timer timer2(true, "Snapshot_test");
   timer2.Start();
   TestCase::CreateTestIsolateFromSnapshot(buffer);
   {
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
     timer2.Stop();
-    OS::PrintErr("From Snapshot: %dus\n", timer2.TotalElapsedTime());
+    OS::PrintErr("From Snapshot: %"Pd64"us\n", timer2.TotalElapsedTime());
 
     // Invoke a function which returns an object.
     Dart_Handle cls = Dart_GetClass(TestCase::lib(),
                                     Dart_NewString("FieldsTest"));
     Dart_Handle result = Dart_Invoke(cls, Dart_NewString("testMain"), 0, NULL);
     if (Dart_IsError(result)) {
       // Print the error.  It is probably an unhandled exception.
       fprintf(stderr, "%s\n", Dart_GetError(result));
     }
     EXPECT_VALID(result);
@@ skipping 631 matching lines @@
   EXPECT(Dart_ErrorHasException(result));
   EXPECT_SUBSTRING("Exception: nulltruefalse1234563.14[]100123456789\n",
                    Dart_GetError(result));
 
   Dart_ExitScope();
 }
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart