Trace when disabling optimized code (--trace-disabling-optimized-code)

runtime/vm/compiler.cc

Index: runtime/vm/compiler.cc
===================================================================
--- runtime/vm/compiler.cc	(revision 14033)
+++ runtime/vm/compiler.cc	(working copy)
@@ -99,15 +99,11 @@
 static void InstallUnoptimizedCode(const Function& function) {
   // Disable optimized code.
   ASSERT(function.HasOptimizedCode());
-  // Patch entry of optimized code.
-  CodePatcher::PatchEntry(Code::Handle(function.CurrentCode()));
   if (FLAG_trace_compiler) {
     OS::Print("--> patching entry %#"Px"\n",
               Code::Handle(function.CurrentCode()).EntryPoint());
   }
-  // Use previously compiled code.
-  function.SetCode(Code::Handle(function.unoptimized_code()));
-  CodePatcher::RestoreEntry(Code::Handle(function.unoptimized_code()));
+  function.SwitchToUnoptimizedCode();
   if (FLAG_trace_compiler) {
     OS::Print("--> restoring entry at %#"Px"\n",
               Code::Handle(function.unoptimized_code()).EntryPoint());