RFR: 8201450: Provide access to LogHandle tagset

[Stefan Karlsson]

Looks good, and trivial.

StefanK

On 2018-04-12 20:59, Kim Barrett wrote:
> Please review this small addition to the LogHandle API, providing
> access to its _tagset member. This supports constructing a
> LogStream from a log level and a LogHandle, among other things.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8201450
>
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8201450/open.00/
>
> Testing:
> Built on on Oracle supported platforms, hs-tier1.
>