Toward precompiled snapshots.

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index ac95aba3ec4bd8fb41aeea3f6733523f23910268..bdfab97cd5745c957ab6ab8ed107a36b363f1301 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -2002,6 +2002,8 @@ class ICData : public Object {
                         bool is_static_call) const;
 
  private:
+  static RawICData* New();
+
   RawArray* ic_data() const {
     return raw_ptr()->ic_data_;
   }
@@ -4376,6 +4378,7 @@ class Code : public Object {
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(Code, Object);
   friend class Class;
+  friend class SnapshotWriter;
 
   // So that the RawFunction pointer visitor can determine whether code the
   // function points to is optimized.