Remove unused relocation mode.

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 103 matching lines @@
   // invalid/uninitialized position value.
   static const int kNoPosition = -1;
 
   enum Mode {
     // Please note the order is important (see IsCodeTarget, IsGCRelocMode).
     CONSTRUCT_CALL,  // code target that is a call to a JavaScript constructor.
     CODE_TARGET_CONTEXT,  // code target used for contextual loads.
     DEBUG_BREAK,
     CODE_TARGET,         // code target which is not any of the above.
     EMBEDDED_OBJECT,
-    EMBEDDED_STRING,
 
     // Everything after runtime_entry (inclusive) is not GC'ed.
     RUNTIME_ENTRY,
     JS_RETURN,  // Marks start of the ExitJSFrame code.
     COMMENT,
     POSITION,  // See comment for kNoPosition above.
     STATEMENT_POSITION,  // See comment for kNoPosition above.
     EXTERNAL_REFERENCE,  // The address of an external C++ function.
     INTERNAL_REFERENCE,  // An address inside the same function.
 
     // add more as needed
     // Pseudo-types
     NUMBER_OF_MODES,  // must be no greater than 14 - see RelocInfoWriter
     NONE,  // never recorded
     LAST_CODE_ENUM = CODE_TARGET,
-    LAST_GCED_ENUM = EMBEDDED_STRING
+    LAST_GCED_ENUM = EMBEDDED_OBJECT
   };
 
 
   RelocInfo() {}
   RelocInfo(byte* pc, Mode rmode, intptr_t data)
       : pc_(pc), rmode_(rmode), data_(data) {
   }
 
   static inline bool IsConstructCall(Mode mode) {
     return mode == CONSTRUCT_CALL;
@@ skipping 384 matching lines @@
   unsigned int num_bits_set;
   for (num_bits_set = 0; x; x >>= 1) {
     num_bits_set += x & 1;
   }
   return num_bits_set;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_