Non-tree-shaking --precompile.

runtime/vm/precompiler.h

Index: runtime/vm/precompiler.h
diff --git a/runtime/bin/embedded_dart_io.h b/runtime/vm/precompiler.h
similarity index 52%
copy from runtime/bin/embedded_dart_io.h
copy to runtime/vm/precompiler.h
index e19b21ac8d1f968421795a789351ec94d6bf530e..140a8661ed74d6d76b7faf9e481ee3b1e29c7703 100644
--- a/runtime/bin/embedded_dart_io.h
+++ b/runtime/vm/precompiler.h
@@ -2,16 +2,21 @@
 // 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;
+
+class Precompiler : public AllStatic {
+ public:
+  static RawError* CompileAll();
+};
 
-}  // namespace bin
 }  // namespace dart
 
-#endif  // BIN_EMBEDDED_DART_IO_H_
+#endif  // VM_PRECOMPILER_H_