Implement new Function.prototype.toString and fix CreateDynamicFunction parsing

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 7729 matching lines @@
   inline BailoutReason disable_optimization_reason();
 
   // Lookup the bailout ID and DCHECK that it exists in the non-optimized
   // code, returns whether it asserted (i.e., always true if assertions are
   // disabled).
   bool VerifyBailoutId(BailoutId id);
 
   // [source code]: Source code for the function.
   bool HasSourceCode() const;
   Handle<Object> GetSourceCode();
+  Handle<Object> GetSourceCodeHarmony();
 
   // Number of times the function was optimized.
   inline int opt_count();
   inline void set_opt_count(int opt_count);
 
   // Number of times the function was deoptimized.
   inline void set_deopt_count(int value);
   inline int deopt_count();
   inline void increment_deopt_count();
 
@@ skipping 4171 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_