Remove a bunch of Isolate::Current() callsites from simulators

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 848 matching lines @@
     // Call to accessor getter callback via InvokeAccessorGetterCallback.
     // void f(Local<Name> property, PropertyCallbackInfo& info,
     //     AccessorNameGetterCallback callback)
     PROFILING_GETTER_CALL
   };
 
   static void SetUp();
   static void InitializeMathExpData();
   static void TearDownMathExpData();
 
-  typedef void* ExternalReferenceRedirector(void* original, Type type);
+  typedef void* ExternalReferenceRedirector(Isolate* isolate, void* original,
+                                            Type type);
 
   ExternalReference() : address_(NULL) {}
 
   ExternalReference(Builtins::CFunctionId id, Isolate* isolate);
 
   ExternalReference(ApiFunction* ptr, Type type, Isolate* isolate);
 
   ExternalReference(Builtins::Name name, Isolate* isolate);
 
   ExternalReference(Runtime::FunctionId id, Isolate* isolate);
@@ skipping 156 matching lines @@
   explicit ExternalReference(void* address)
       : address_(address) {}
 
   static void* Redirect(Isolate* isolate,
                         Address address_arg,
                         Type type = ExternalReference::BUILTIN_CALL) {
     ExternalReferenceRedirector* redirector =
         reinterpret_cast<ExternalReferenceRedirector*>(
             isolate->external_reference_redirector());
     void* address = reinterpret_cast<void*>(address_arg);
-    void* answer = (redirector == NULL) ?
-                   address :
-                   (*redirector)(address, type);
+    void* answer =
+        (redirector == NULL) ? address : (*redirector)(isolate, address, type);
     return answer;
   }
 
   void* address_;
 };
 
 bool operator==(ExternalReference, ExternalReference);
 bool operator!=(ExternalReference, ExternalReference);
 
 size_t hash_value(ExternalReference);
@@ skipping 217 matching lines @@
     std::vector<ConstantPoolEntry> shared_entries;
   };
 
   Label emitted_label_;  // Records pc_offset of emitted pool
   PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES];
 };
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_ASSEMBLER_H_