RFR (M): 8219748: Add and use getter for the timing object in G1

[Kim Barrett]

> On Feb 27, 2019, at 5:18 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi,
> 
>  can I have reviews that adds a "phase_times()" getter to
> G1CollectedHeap to avoid the 50+ times of using "policy()-
>> phase_times()" instead?
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8219748
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8219748/webrev/
> Testing:
> local compilation
> 
> Thanks,
>  Thomas

Looks good.