After perusing, the real issue is that V8 builds ICU 58, and the system 
version (on RHEL/CENTOS 7) is 50.1.  V8 may well require ICU 58.

On Thursday, December 8, 2016 at 2:25:00 AM UTC-6, Peter Kanev wrote:
>
> Documentation is available in the header files, `Has` will return true 
> whether the property is attached on the concrete object, or on the object 
> prototype, while HasOwnProperty will return true only if the property is 
> available on the object instance, but not on the prototype.
>
> On Thursday, December 8, 2016 at 12:48:47 AM UTC+2, kent williams wrote:
>>
>> If this is documented anywhere, I haven't found it.
>>
>> What is difference between v8::Object::Has() and 
>> v8::Object::HasOwnProperty()?
>>
>> for example:
>>
>> var x = { HasThisProperty : true };
>>
>> Both functions return true.
>>
>> What would be a case where one was true and the other false?
>>
>>

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