Remove obsolete Code::optimizable flag.

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/v8.h"
 
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/deoptimizer.h"
 #include "src/frames.h"
@@ skipping 150 matching lines @@
     // 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);
   }
 
   return isolate->heap()->undefined_value();
 }
 
 
 static bool IsSuitableForOnStackReplacement(Isolate* isolate,
-                                            Handle<JSFunction> function,
-                                            Handle<Code> current_code) {
+                                            Handle<JSFunction> function) {
   // Keep track of whether we've succeeded in optimizing.
-  if (!current_code->optimizable()) return false;
+  if (function->shared()->optimization_disabled()) return false;
   // If we are trying to do OSR when there are already optimized
   // activations of the function, it means (a) the function is directly or
   // indirectly recursive and (b) an optimized invocation has been
   // deoptimized so that we are currently in an unoptimized activation.
   // Check for optimized activations of this function.
   for (JavaScriptFrameIterator it(isolate); !it.done(); it.Advance()) {
     JavaScriptFrame* frame = it.frame();
     if (frame->is_optimized() && frame->function() == *function) return false;
   }
 
@@ skipping 61 matching lines @@
     job = dispatcher->FindReadyOSRCandidate(function, ast_id);
   }
 
   if (job != NULL) {
     if (FLAG_trace_osr) {
       PrintF("[OSR - Found ready: ");
       function->PrintName();
       PrintF(" at AST id %d]\n", ast_id.ToInt());
     }
     result = Compiler::GetConcurrentlyOptimizedCode(job);
-  } else if (IsSuitableForOnStackReplacement(isolate, function, caller_code)) {
+  } else if (IsSuitableForOnStackReplacement(isolate, function)) {
     if (FLAG_trace_osr) {
       PrintF("[OSR - Compiling: ");
       function->PrintName();
       PrintF(" at AST id %d]\n", ast_id.ToInt());
     }
     MaybeHandle<Code> maybe_result =
         Compiler::GetOptimizedCode(function, caller_code, mode, ast_id);
     if (maybe_result.ToHandle(&result) &&
         result.is_identical_to(isolate->builtins()->InOptimizationQueue())) {
       // Optimization is queued.  Return to check later.
@@ skipping 169 matching lines @@
   DCHECK(is_valid_language_mode(args.smi_at(4)));
   LanguageMode language_mode = static_cast<LanguageMode>(args.smi_at(4));
   DCHECK(args[5]->IsSmi());
   Handle<SharedFunctionInfo> outer_info(args.at<JSFunction>(2)->shared(),
                                         isolate);
   return CompileGlobalEval(isolate, args.at<String>(1), outer_info,
                            args.at<Object>(3), language_mode, args.smi_at(5));
 }
 }  // namespace internal
 }  // namespace v8