Reimplement Maps and Sets in JS

src/hydrogen.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_HYDROGEN_H_
 #define V8_HYDROGEN_H_
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 2199 matching lines @@
   F(ArrayBufferGetByteLength)          \
   /* Maths */                          \
   F(ConstructDouble)                   \
   F(DoubleHi)                          \
   F(DoubleLo)                          \
   F(MathFloor)                         \
   F(MathSqrt)                          \
   F(MathLogRT)                         \
   /* ES6 Collections */                \
   F(MapClear)                          \
-  F(MapDelete)                         \
-  F(MapGet)                            \
-  F(MapGetSize)                        \
-  F(MapHas)                            \
   F(MapInitialize)                     \
-  F(MapSet)                            \
-  F(SetAdd)                            \
   F(SetClear)                          \
-  F(SetDelete)                         \
-  F(SetGetSize)                        \
-  F(SetHas)                            \
   F(SetInitialize)                     \
+  F(FixedArrayGet)                     \
+  F(FixedArraySet)                     \
+  F(JSCollectionGetTable)              \
+  F(StringGetRawHashField)             \
+  F(TheHole)                           \
   /* Arrays */                         \
   F(HasFastPackedElements)             \
   F(GetPrototype)
 
 #define GENERATOR_DECLARATION(Name) void Generate##Name(CallRuntime* call);
   FOR_EACH_HYDROGEN_INTRINSIC(GENERATOR_DECLARATION)
 #undef GENERATOR_DECLARATION
 
   void VisitDelete(UnaryOperation* expr);
   void VisitVoid(UnaryOperation* expr);
@@ skipping 784 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_