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

src/deoptimizer.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_DEOPTIMIZER_H_
 #define V8_DEOPTIMIZER_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 108 matching lines @@
   V(kLostPrecision, "lost precision")                                          \
   V(kLostPrecisionOrNaN, "lost precision or NaN")                              \
   V(kMementoFound, "memento found")                                            \
   V(kMinusZero, "minus zero")                                                  \
   V(kNaN, "NaN")                                                               \
   V(kNegativeKeyEncountered, "Negative key encountered")                       \
   V(kNegativeValue, "negative value")                                          \
   V(kNoCache, "no cache")                                                      \
   V(kNonStrictElementsInKeyedLoadGenericStub,                                  \
     "non-strict elements in KeyedLoadGenericStub")                             \
-  V(kNotADateObject, "not a date object")                                      \
   V(kNotAHeapNumber, "not a heap number")                                      \
   V(kNotAHeapNumberUndefinedBoolean, "not a heap number/undefined/true/false") \
   V(kNotAHeapNumberUndefined, "not a heap number/undefined")                   \
   V(kNotAJavaScriptObject, "not a JavaScript object")                          \
   V(kNotASmi, "not a Smi")                                                     \
   V(kNull, "null")                                                             \
   V(kOutOfBounds, "out of bounds")                                             \
   V(kOutsideOfRange, "Outside of range")                                       \
   V(kOverflow, "overflow")                                                     \
   V(kReceiverWasAGlobalObject, "receiver was a global object")                 \
@@ skipping 914 matching lines @@
   Object** parameters_;
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_