RFR: 8216154: C4819 warnings at HotSpot sources on Windows

[Kim Barrett]

> On Jan 6, 2019, at 7:53 AM, Yasumasa Suenaga <yasuenag at gmail.com> wrote:
> 
> Hi Kim,
> 
> Thank you for your comment.
> I uploaded new webrev to use pragma warning push/pop:
> 
>  http://cr.openjdk.java.net/~ysuenaga/JDK-8216154/webrev.01/
> 
> 
> Please review again.

Looks good.