FYI Implementing 'super' keyword

src/runtime.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_RUNTIME_H_
 #define V8_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/zone.h"
 
@@ skipping 159 matching lines @@
   F(StringToArray, 2, 1)                                    \
   F(NewStringWrapper, 1, 1)                                 \
   F(NewString, 2, 1)                                        \
   F(TruncateString, 2, 1)                                   \
                                                             \
   /* Numbers */                                             \
   F(NumberToRadixString, 2, 1)                              \
   F(NumberToFixed, 2, 1)                                    \
   F(NumberToExponential, 2, 1)                              \
   F(NumberToPrecision, 2, 1)                                \
+  F(ToMethod, 2, 1) \
   F(IsValidSmi, 1, 1)
 
 
 #define RUNTIME_FUNCTION_LIST_ALWAYS_2(F)                             \
   /* Reflection */                                                    \
   F(FunctionSetInstanceClassName, 2, 1)                               \
   F(FunctionSetLength, 2, 1)                                          \
   F(FunctionSetPrototype, 2, 1)                                       \
   F(FunctionGetName, 1, 1)                                            \
   F(FunctionSetName, 2, 1)                                            \
@@ skipping 710 matching lines @@
 class AllocateDoubleAlignFlag:  public BitField<bool,            0, 1> {};
 class AllocateTargetSpace:      public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag:   public BitField<bool,       0, 1> {};
 class DeclareGlobalsNativeFlag: public BitField<bool,       1, 1> {};
 class DeclareGlobalsStrictMode: public BitField<StrictMode, 2, 1> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_