Make TurboFan inlining work without deoptimization.

src/compiler.h

 // 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.
 
 #ifndef V8_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/bailout-reason.h"
@@ skipping 186 matching lines @@
   void PrepareForSerializing() { SetFlag(kSerializing); }
 
   bool will_serialize() const { return GetFlag(kSerializing); }
 
   void MarkAsContextSpecializing() { SetFlag(kContextSpecializing); }
 
   bool is_context_specializing() const { return GetFlag(kContextSpecializing); }
 
   void MarkAsInliningEnabled() { SetFlag(kInliningEnabled); }
 
-  void MarkAsInliningDisabled() { SetFlag(kInliningEnabled, false); }
-
   bool is_inlining_enabled() const { return GetFlag(kInliningEnabled); }
 
   void MarkAsTypingEnabled() { SetFlag(kTypingEnabled); }
 
   bool is_typing_enabled() const { return GetFlag(kTypingEnabled); }
 
   void MarkAsToplevel() { SetFlag(kToplevel); }
 
   bool is_toplevel() const { return GetFlag(kToplevel); }
 
@@ skipping 533 matching lines @@
   Zone zone_;
   unsigned info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_