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

runtime/vm/code_generator_ia32_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 "platform/assert.h"
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_IA32)
 
-#include "vm/code_generator.h"
-
 #include "vm/ast.h"
 #include "vm/assembler.h"
-#include "vm/assert.h"
 #include "vm/class_finalizer.h"
+#include "vm/code_generator.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
 #include "vm/native_entry.h"
 #include "vm/native_entry_test.h"
 #include "vm/unit_test.h"
 #include "vm/virtual_memory.h"
 
 namespace dart {
 
 #define __ assembler_->
@@ skipping 467 matching lines @@
   const Library& app_lib = Library::Handle(
       Isolate::Current()->object_store()->registered_libraries());
   const Class& cls = Class::Handle(
       app_lib.LookupClass(String::Handle(String::NewSymbol("A"))));
   EXPECT_EQ(cls.raw(), result.clazz());
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32