Bring heap snapshot Map iterator up to date.

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 6242 matching lines @@
       kPrototypeOffset + kPointerSize;
   // When there is only one transition, it is stored directly in this field;
   // otherwise a transition array is used.
   // For prototype maps, this slot is used to store this map's PrototypeInfo
   // struct.
   static const int kTransitionsOrPrototypeInfoOffset =
       kConstructorOrBackPointerOffset + kPointerSize;
   static const int kDescriptorsOffset =
       kTransitionsOrPrototypeInfoOffset + kPointerSize;
 #if V8_DOUBLE_FIELDS_UNBOXING
-  static const int kLayoutDecriptorOffset = kDescriptorsOffset + kPointerSize;
-  static const int kCodeCacheOffset = kLayoutDecriptorOffset + kPointerSize;
+  static const int kLayoutDescriptorOffset = kDescriptorsOffset + kPointerSize;
+  static const int kCodeCacheOffset = kLayoutDescriptorOffset + kPointerSize;
 #else
-  static const int kLayoutDecriptorOffset = 1;  // Must not be ever accessed.
+  static const int kLayoutDescriptorOffset = 1;  // Must not be ever accessed.
   static const int kCodeCacheOffset = kDescriptorsOffset + kPointerSize;
 #endif
   static const int kDependentCodeOffset = kCodeCacheOffset + kPointerSize;
   static const int kWeakCellCacheOffset = kDependentCodeOffset + kPointerSize;
   static const int kSize = kWeakCellCacheOffset + kPointerSize;
 
   // Layout of pointer fields. Heap iteration code relies on them
   // being continuously allocated.
   static const int kPointerFieldsBeginOffset = Map::kPrototypeOffset;
   static const int kPointerFieldsEndOffset = kSize;
@@ skipping 4786 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_