Search prototypes for accessor setters if interceptor returns empty value.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index ed58f64f6f71a2fa98e6fa4691e43ad3dfae1c27..877a5ed832963d553a4208e52364fac803382a47 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2006,6 +2006,13 @@ class JSObject: public JSReceiver {
       StrictModeFlag strict_mode,
       bool check_prototype);
 
+  MUST_USE_RESULT MaybeObject* SetPropertyInPrototypes(
+      String* name,
+      Object* value,
+      PropertyAttributes attributes,
+      bool* found,
+      StrictModeFlag strict_mode);
+
   MUST_USE_RESULT MaybeObject* DeletePropertyPostInterceptor(String* name,
                                                              DeleteMode mode);
   MUST_USE_RESULT MaybeObject* DeletePropertyWithInterceptor(String* name);