Fixed various simulator-related space leaks.

src/arm64/simulator-arm64.h

 // Copyright 2013 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_ARM64_SIMULATOR_ARM64_H_
 #define V8_ARM64_SIMULATOR_ARM64_H_
 
 #include <stdarg.h>
 #include <vector>
 
@@ skipping 145 matching lines @@
   explicit Simulator(Decoder<DispatchingDecoderVisitor>* decoder,
                      Isolate* isolate = NULL,
                      FILE* stream = stderr);
   Simulator();
   ~Simulator();
 
   // System functions.
 
   static void Initialize(Isolate* isolate);
 
+  static void TearDown(HashMap* i_cache, Redirection* first);
+
   static Simulator* current(v8::internal::Isolate* isolate);
 
   class CallArgument;
 
   // Call an arbitrary function taking an arbitrary number of arguments. The
   // varargs list must be a set of arguments with type CallArgument, and
   // terminated by CallArgument::End().
   void CallVoid(byte* entry, CallArgument* args);
 
   // Like CallVoid, but expect a return value.
@@ skipping 723 matching lines @@
   static void UnregisterCTryCatch() {
     Simulator::current(Isolate::Current())->PopAddress();
   }
 };
 
 #endif  // !defined(USE_SIMULATOR)
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_SIMULATOR_ARM64_H_