Mark optimized code that used CHA for optimization so that lazy class 'finalization' does not inval…

runtime/vm/raw_object.h

Index: runtime/vm/raw_object.h
===================================================================
--- runtime/vm/raw_object.h	(revision 32284)
+++ runtime/vm/raw_object.h	(working copy)
@@ -496,7 +496,8 @@
   RawArray* constants_;  // Canonicalized values of this class.
   RawObject* canonical_types_;  // An array of canonicalized types of this class
                                 // or the canonical type.
-  RawArray* invocation_dispatcher_cache_;   // Cache for dispatcher functions.
+  RawArray* invocation_dispatcher_cache_;  // Cache for dispatcher functions.
+  RawArray* cha_codes_;  // CHA optimized codes.
   RawCode* allocation_stub_;  // Stub code for allocation of instances.
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&ptr()->allocation_stub_);