[es6] Introduce a dedicated JSIteratorResult type.

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/accessors.h"
 #include "src/allocation.h"
 #include "src/ast.h"
@@ skipping 1340 matching lines @@
   void BuildNonGlobalObjectCheck(HValue* receiver);
 
   HValue* BuildKeyedLookupCacheHash(HValue* object,
                                     HValue* key);
 
   HValue* BuildUncheckedDictionaryElementLoad(HValue* receiver,
                                               HValue* elements, HValue* key,
                                               HValue* hash,
                                               LanguageMode language_mode);
 
+  // ES6 section 7.4.7 CreateIterResultObject ( value, done )
+  HValue* BuildCreateIterResultObject(HValue* value, HValue* done);
+
   HValue* BuildRegExpConstructResult(HValue* length,
                                      HValue* index,
                                      HValue* input);
 
   // Allocates a new object according with the given allocation properties.
   HAllocate* BuildAllocate(HValue* object_size,
                            HType type,
                            InstanceType instance_type,
                            HAllocationMode allocation_mode);
   // Computes the sum of two string lengths, taking care of overflow handling.
@@ skipping 889 matching lines @@
   /* ES6 Collections */                \
   F(MapClear)                          \
   F(MapInitialize)                     \
   F(SetClear)                          \
   F(SetInitialize)                     \
   F(FixedArrayGet)                     \
   F(FixedArraySet)                     \
   F(JSCollectionGetTable)              \
   F(StringGetRawHashField)             \
   F(TheHole)                           \
+  /* ES6 Iterators */                  \
+  F(CreateIterResultObject)            \
   /* Arrays */                         \
   F(HasFastPackedElements)             \
   F(GetPrototype)                      \
   /* Strings */                        \
   F(StringGetLength)                   \
   /* JSValue */                        \
   F(JSValueGetValue)
 
 #define GENERATOR_DECLARATION(Name) void Generate##Name(CallRuntime* call);
   FOR_EACH_HYDROGEN_INTRINSIC(GENERATOR_DECLARATION)
@@ skipping 785 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_