[date] Refactor the %_DateField intrinsic to be optimizable.

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/zone.h"
@@ skipping 102 matching lines @@
   F(NotifyStubFailure, 0, 1)            \
   F(NotifyDeoptimized, 1, 1)            \
   F(CompileForOnStackReplacement, 1, 1) \
   F(TryInstallOptimizedCode, 1, 1)      \
   F(CompileString, 2, 1)
 
 
 #define FOR_EACH_INTRINSIC_DATE(F) \
   F(DateMakeDay, 2, 1)             \
   F(DateSetValue, 3, 1)            \
+  F(ThrowIfNotADate, 1, 1)         \
   F(ThrowNotDateError, 0, 1)       \
   F(DateCurrentTime, 0, 1)         \
   F(DateParseString, 2, 1)         \
   F(DateLocalTimezone, 1, 1)       \
   F(DateToUTC, 1, 1)               \
   F(DateCacheVersion, 0, 1)        \
   F(DateField, 2 /* date object, field index */, 1)
 
 
 #define FOR_EACH_INTRINSIC_DEBUG(F)            \
@@ skipping 753 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_