AssemblerBase does not need remember a Zone. Fix this.

src/assembler.cc

 // 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 88 matching lines @@
   double the_hole_nan;
 };
 
 static DoubleConstant double_constants;
 
 const char* const RelocInfo::kFillerCommentString = "DEOPTIMIZATION PADDING";
 
 // -----------------------------------------------------------------------------
 // Implementation of AssemblerBase
 
-AssemblerBase::AssemblerBase(Isolate* isolate, Zone* zone)
+AssemblerBase::AssemblerBase(Isolate* isolate)
     : isolate_(isolate),
-      jit_cookie_(0),
-      zone_(zone) {
+      jit_cookie_(0) {
   if (FLAG_mask_constants_with_cookie && isolate != NULL)  {
     jit_cookie_ = V8::RandomPrivate(isolate);
   }
 }
 
 
 // -----------------------------------------------------------------------------
 // Implementation of Label
 
 int Label::pos() const {
@@ skipping 1209 matching lines @@
     assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
     state_.written_position = state_.current_position;
     written = true;
   }
 
   // Return whether something was written.
   return written;
 }
 
 } }  // namespace v8::internal