More spelling changes.

src/mark-compact.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 389 matching lines @@
                                              HeapObject* object,
                                              int object_size);
 
   // Type of functions to encode the forwarding address for an object.
   // Given the object, its size, and the new (non-failure) object it will be
   // forwarded to, encode the forwarding address.  For paged spaces, the
   // 'offset' input/output parameter contains the offset of the forwarded
   // object from the forwarding address of the previous live object in the
   // page as input, and is updated to contain the offset to be used for the
   // next live object in the same page.  For spaces using a different
-  // encoding (ie, contiguous spaces), the offset parameter is ignored.
+  // encoding (i.e., contiguous spaces), the offset parameter is ignored.
   typedef void (*EncodingFunction)(Heap* heap,
                                    HeapObject* old_object,
                                    int object_size,
                                    Object* new_object,
                                    int* offset);
 
   // Type of functions to process non-live objects.
   typedef void (*ProcessNonLiveFunction)(HeapObject* object, Isolate* isolate);
 
   // Pointer to member function, used in IterateLiveObjects.
@@ skipping 324 matching lines @@
 
   friend class Heap;
 };
 
 
 const char* AllocationSpaceName(AllocationSpace space);
 
 } }  // namespace v8::internal
 
 #endif  // V8_MARK_COMPACT_H_