Thread isolate through Property constructor, avoiding Isolate::Current.

src/ast.h

 // Copyright 2012 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 1239 matching lines @@
   class Property: public ZoneObject {
    public:
     enum Kind {
       CONSTANT,              // Property with constant value (compile time).
       COMPUTED,              // Property with computed value (execution time).
       MATERIALIZED_LITERAL,  // Property value is a materialized literal.
       GETTER, SETTER,        // Property is an accessor function.
       PROTOTYPE              // Property is __proto__.
     };
 
-    Property(Literal* key, Expression* value);
+    Property(Literal* key, Expression* value, Isolate* isolate);
 
     Literal* key() { return key_; }
     Expression* value() { return value_; }
     Kind kind() { return kind_; }
 
     bool IsCompileTimeValue();
 
     void set_emit_store(bool emit_store);
     bool emit_store();
 
@@ skipping 1602 matching lines @@
  private:
   Isolate* isolate_;
   Zone* zone_;
   Visitor visitor_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_