Make TurboFan inlining work without deoptimization.

src/compiler.cc

 // Copyright 2012 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/compiler.h"
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 855 matching lines @@
     CompilationInfoWithZone info(function);
 
     VMState<COMPILER> state(isolate);
     PostponeInterruptsScope postpone(isolate);
 
     info.SetOptimizing(BailoutId::None(),
                        Handle<Code>(function->shared()->code()));
 
     info.MarkAsContextSpecializing();
     info.MarkAsTypingEnabled();
-    info.MarkAsInliningDisabled();
 
     if (GetOptimizedCodeNow(&info)) {
       DCHECK(function->shared()->is_compiled());
       return info.code();
     }
   }
 
   if (function->shared()->is_compiled()) {
     return Handle<Code>(function->shared()->code());
   }
@@ skipping 594 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal