Return MaybeHandle from SetProperty.

src/isolate.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 159 matching lines @@
       return value;                                                  \
     }                                                                \
   } while (false)
 
 #define ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, dst, call)  \
   ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, dst, call, Failure::Exception())
 
 #define ASSIGN_RETURN_ON_EXCEPTION(isolate, dst, call, T)  \
   ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, dst, call, MaybeHandle<T>())
 
-#define RETURN_ON_EXCEPTION_VALUE(isolate, dst, call, value)  \
+#define RETURN_ON_EXCEPTION_VALUE(isolate, call, value)            \
   do {                                                             \
     if ((call).is_null()) {                                        \
       ASSERT((isolate)->has_pending_exception());                  \
       return value;                                                \
     }                                                              \
   } while (false)
 
 #define RETURN_FAILURE_ON_EXCEPTION(isolate, call)  \
-  RETURN_ON_EXCEPTION_VALUE(isolate, dst, call, Failure::Exception())
+  RETURN_ON_EXCEPTION_VALUE(isolate, call, Failure::Exception())
 
 #define RETURN_ON_EXCEPTION(isolate, call, T)  \
-  RETURN_ON_EXCEPTION_VALUE(                   \
-      isolate, dst, call, MaybeHandle<T>::Exception())
+  RETURN_ON_EXCEPTION_VALUE(isolate, call, MaybeHandle<T>())
 
 
 #define FOR_EACH_ISOLATE_ADDRESS_NAME(C)                \
   C(Handler, handler)                                   \
   C(CEntryFP, c_entry_fp)                               \
   C(Context, context)                                   \
   C(PendingException, pending_exception)                \
   C(ExternalCaughtException, external_caught_exception) \
   C(JSEntrySP, js_entry_sp)
 
@@ skipping 1378 matching lines @@
   }
 
   EmbeddedVector<char, 128> filename_;
   FILE* file_;
   int scope_depth_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ISOLATE_H_