[cleanup] Remove dead code from DeclareLookupSlot and rename it

src/property-details.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_PROPERTY_DETAILS_H_
 #define V8_PROPERTY_DETAILS_H_
 
 #include "include/v8.h"
 #include "src/allocation.h"
 #include "src/utils.h"
@@ skipping 10 matching lines @@
 
   ALL_ATTRIBUTES_MASK = READ_ONLY | DONT_ENUM | DONT_DELETE,
 
   SEALED = DONT_DELETE,
   FROZEN = SEALED | READ_ONLY,
 
   ABSENT = 64,  // Used in runtime to indicate a property is absent.
   // ABSENT can never be stored in or returned from a descriptor's attributes
   // bitfield.  It is only used as a return value meaning the attributes of
   // a non-existent property.
-
-  // When creating a property, EVAL_DECLARED used to indicate that the property
-  // came from a sloppy-mode direct eval, and certain checks need to be done.
-  // Cannot be stored in or returned from a descriptor's attributes bitfield.
-  EVAL_DECLARED = 128
 };
 
 
 enum PropertyFilter {
   ALL_PROPERTIES = 0,
   ONLY_WRITABLE = 1,
   ONLY_ENUMERABLE = 2,
   ONLY_CONFIGURABLE = 4,
   SKIP_STRINGS = 8,
   SKIP_SYMBOLS = 16,
@@ skipping 353 matching lines @@
 };
 
 
 std::ostream& operator<<(std::ostream& os,
                          const PropertyAttributes& attributes);
 std::ostream& operator<<(std::ostream& os, const PropertyDetails& details);
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROPERTY_DETAILS_H_