Move assert.h/assert.cc from runtime/vm to runtime/platform

runtime/vm/class_finalizer_test.cc

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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/assert.h"
+#include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 
 static RawClass* CreateTestClass(const char* name) {
   const Array& empty_array = Array::Handle(Array::Empty());
   const String& class_name = String::Handle(String::NewSymbol(name));
   const Script& script = Script::Handle();
@@ skipping 59 matching lines @@
   const UnresolvedClass& unresolved = UnresolvedClass::Handle(
       UnresolvedClass::New(0, String::Handle(), superclass_name));
   const TypeArguments& type_arguments = TypeArguments::Handle();
   rhb.set_super_type(Type::Handle(Type::NewParameterizedType(
       Object::Handle(unresolved.raw()), type_arguments)));
   ClassFinalizer::AddPendingClasses(classes);
   EXPECT(ClassFinalizer::FinalizePendingClasses());
 }
 
 }  // namespace dart