Handlify GetSourceCode-related functions.

src/objects.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 5306 matching lines @@
   DECL_ACCESSORS(this_property_assignments, Object)
   inline int this_property_assignments_count();
   inline void set_this_property_assignments_count(int value);
   String* GetThisPropertyAssignmentName(int index);
   bool IsThisPropertyAssignmentArgument(int index);
   int GetThisPropertyAssignmentArgument(int index);
   Object* GetThisPropertyAssignmentConstant(int index);
 
   // [source code]: Source code for the function.
   bool HasSourceCode();
-  Object* GetSourceCode();
+  Handle<Object> GetSourceCode();
 
   inline int opt_count();
   inline void set_opt_count(int opt_count);
 
   // Source size of this function.
   int SourceSize();
 
   // Calculate the instance size.
   int CalculateInstanceSize();
 
@@ skipping 2922 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_