[api] Add DefineProperty() method that skips interceptors.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 14a119f0e85e3be738d9649be869de6085d1c7b6..f8ce09ceb3e1abd019766b82cfa194892aa9ce6d 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -3006,6 +3006,9 @@ class V8_EXPORT Object : public Value {
   V8_WARN_UNUSED_RESULT Maybe<bool> DefineProperty(
       Local<Context> context, Local<Name> key, PropertyDescriptor& descriptor);
 
+  V8_WARN_UNUSED_RESULT Maybe<bool> DefinePropertyWithoutInterceptors(

[Franzi, 2017/04/12 08:58:17]

Can you add a comment please. Maybe make the function name consistent with the
other functions that bypass interceptors. 

+      Local<Context> context, Local<Name> key, PropertyDescriptor& descriptor);
+
   // Sets an own property on this object bypassing interceptors and
   // overriding accessors or read-only properties.
   //