Non-tree-shaking --precompile.

runtime/vm/precompiler.h

 // Copyright (c) 2015, 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.
 
-#ifndef BIN_EMBEDDED_DART_IO_H_
-#define BIN_EMBEDDED_DART_IO_H_
+#ifndef VM_PRECOMPILER_H_
+#define VM_PRECOMPILER_H_
+
+#include "vm/allocation.h"
 
 namespace dart {
-namespace bin {
 
-// Bootstraps 'dart:io'.
-void BootstrapDartIo();
+// Forward declarations.
+class RawError;
 
-}  // namespace bin
+class Precompiler : public AllStatic {
+ public:
+  static RawError* CompileAll();
+};
+
 }  // namespace dart
 
-#endif  // BIN_EMBEDDED_DART_IO_H_
+#endif  // VM_PRECOMPILER_H_