[Interpreter] Add ForInPrepare runtime function which returns a ObjectTriple.

src/runtime/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_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/objects.h"
 #include "src/unicode.h"
@@ skipping 202 matching lines @@
   F(InterpreterNotEquals, 2, 1)           \
   F(InterpreterStrictEquals, 2, 1)        \
   F(InterpreterStrictNotEquals, 2, 1)     \
   F(InterpreterLessThan, 2, 1)            \
   F(InterpreterGreaterThan, 2, 1)         \
   F(InterpreterLessThanOrEqual, 2, 1)     \
   F(InterpreterGreaterThanOrEqual, 2, 1)  \
   F(InterpreterToBoolean, 1, 1)           \
   F(InterpreterLogicalNot, 1, 1)          \
   F(InterpreterTypeOf, 1, 1)              \
-  F(InterpreterNewClosure, 2, 1)          \
-  F(InterpreterForInPrepare, 1, 1)
+  F(InterpreterNewClosure, 2, 1)
 
 
 #define FOR_EACH_INTRINSIC_FUNCTION(F)     \
   F(FunctionGetName, 1, 1)                 \
   F(FunctionSetName, 2, 1)                 \
   F(FunctionRemovePrototype, 1, 1)         \
   F(FunctionGetScript, 1, 1)               \
   F(FunctionGetSourceCode, 1, 1)           \
   F(FunctionGetScriptSourcePosition, 1, 1) \
   F(FunctionGetPositionForOffset, 2, 1)    \
@@ skipping 767 matching lines @@
 
 #define FOR_EACH_INTRINSIC_URI(F) \
   F(URIEscape, 1, 1)              \
   F(URIUnescape, 1, 1)
 
 
 #define FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
   F(LoadLookupSlot, 2, 2)                 \
   F(LoadLookupSlotNoReferenceError, 2, 2)
 
+#define FOR_EACH_INTRINSIC_RETURN_TRIPLE(F) \
+  F(ForInPrepare, 1, 3)
 
 // Most intrinsics are implemented in the runtime/ directory, but ICs are
 // implemented in ic.cc for now.
 #define FOR_EACH_INTRINSIC_IC(F)             \
   F(BinaryOpIC_Miss, 2, 1)                   \
   F(BinaryOpIC_MissWithAllocationSite, 3, 1) \
   F(CallIC_Miss, 3, 1)                       \
   F(CompareIC_Miss, 3, 1)                    \
   F(CompareNilIC_Miss, 1, 1)                 \
   F(ElementsTransitionAndStoreIC_Miss, 5, 1) \
@@ skipping 45 matching lines @@
   FOR_EACH_INTRINSIC_SCOPES(F)              \
   FOR_EACH_INTRINSIC_SIMD(F)                \
   FOR_EACH_INTRINSIC_STRINGS(F)             \
   FOR_EACH_INTRINSIC_SYMBOL(F)              \
   FOR_EACH_INTRINSIC_TEST(F)                \
   FOR_EACH_INTRINSIC_TYPEDARRAY(F)          \
   FOR_EACH_INTRINSIC_URI(F)
 
 // FOR_EACH_INTRINSIC defines the list of all intrinsics, coming in 2 flavors,
 // either returning an object or a pair.
-#define FOR_EACH_INTRINSIC(F)       \
-  FOR_EACH_INTRINSIC_RETURN_PAIR(F) \
+#define FOR_EACH_INTRINSIC(F)         \
+  FOR_EACH_INTRINSIC_RETURN_TRIPLE(F) \
+  FOR_EACH_INTRINSIC_RETURN_PAIR(F)   \
   FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 
 
 #define F(name, nargs, ressize)                                 \
   Object* Runtime_##name(int args_length, Object** args_object, \
                          Isolate* isolate);
 FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
 #undef F
 
 //---------------------------------------------------------------------------
@@ skipping 133 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 3);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_