First step toward deoptimization using deoptimization info: splits deoptimization into two steps: c…

runtime/vm/object.h

Index: runtime/vm/object.h
===================================================================
--- runtime/vm/object.h	(revision 10031)
+++ runtime/vm/object.h	(working copy)
@@ -1369,6 +1369,9 @@
   // Sets function's code and code's function.
   void SetCode(const Code& value) const;
 
+  // Disables optimized code and switches to unoptimized code.
+  void SwitchToUnoptimizedCode() const;
+
   // Return the most recently compiled and installed code for this function.
   // It is not the only Code object that points to this function.
   RawCode* CurrentCode() const { return raw_ptr()->code_; }