Fix multi-isolate build:

src/stub-cache.h

 // Copyright 2006-2008 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 390 matching lines @@
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, LoadPropertyWithInterceptorForLoad);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, LoadPropertyWithInterceptorForCall);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, StoreInterceptorProperty);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, CallInterceptorProperty);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, KeyedLoadPropertyWithInterceptor);
 
 
 // The stub compiler compiles stubs for the stub cache.
 class StubCompiler BASE_EMBEDDED {
  public:
-  StubCompiler() : scope_(), masm_(NULL, 256), failure_(NULL) { }
+  StubCompiler()
+      : scope_(), masm_(Isolate::Current(), NULL, 256), failure_(NULL) { }
 
   MUST_USE_RESULT MaybeObject* CompileCallInitialize(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallPreMonomorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallNormal(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMegamorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMiss(Code::Flags flags);
 #ifdef ENABLE_DEBUGGER_SUPPORT
   MUST_USE_RESULT MaybeObject* CompileCallDebugBreak(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallDebugPrepareStepIn(Code::Flags flags);
 #endif
@@ skipping 434 matching lines @@
   MUST_USE_RESULT MaybeObject* CompileKeyedStoreStub(
       JSObject* receiver, ExternalArrayType array_type, Code::Flags flags);
 
  private:
   MaybeObject* GetCode(Code::Flags flags);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_