[deoptimizer] When deoptimizing code, unlink all functions referring to that code.

src/runtime/runtime-compiler.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/asmjs/asm-js.h"
 #include "src/compiler-dispatcher/optimizing-compile-dispatcher.h"
 #include "src/compiler.h"
@@ skipping 195 matching lines @@
 
   // Search for other activations of the same optimized code.
   // At this point {it} is at the topmost frame of all the frames materialized
   // by the deoptimizer. Note that this frame does not necessarily represent
   // an activation of {function} because of potential inlined tail-calls.
   ActivationsFinder activations_finder(*optimized_code);
   activations_finder.VisitFrames(&it);
   isolate->thread_manager()->IterateArchivedThreads(&activations_finder);
 
   if (!activations_finder.has_code_activations_) {
-    if (function->code() == *optimized_code) {
-      if (FLAG_trace_deopt) {
-        PrintF("[removing optimized code for: ");
-        function->PrintName();
-        PrintF("]\n");
-      }
-      function->ReplaceCode(function->shared()->code());
-    }
+    Deoptimizer::UnlinkOptimizedCode(*optimized_code,
+                                     function->context()->native_context());
+
     // Evict optimized code for this function from the cache so that it
     // doesn't get used for new closures.
     function->shared()->EvictFromOptimizedCodeMap(*optimized_code,
                                                   "notify deoptimized");
   } else {
     // TODO(titzer): we should probably do DeoptimizeCodeList(code)
     // unconditionally if the code is not already marked for deoptimization.
     // If there is an index by shared function info, all the better.
     Deoptimizer::DeoptimizeFunction(*function);
   }
@@ skipping 241 matching lines @@
   DCHECK(is_valid_language_mode(args.smi_at(3)));
   LanguageMode language_mode = static_cast<LanguageMode>(args.smi_at(3));
   DCHECK(args[4]->IsSmi());
   Handle<SharedFunctionInfo> outer_info(args.at<JSFunction>(2)->shared(),
                                         isolate);
   return CompileGlobalEval(isolate, args.at<String>(1), outer_info,
                            language_mode, args.smi_at(4), args.smi_at(5));
 }
 }  // namespace internal
 }  // namespace v8