RFR: Some smallish ShHeapRegionSet changes

[Aleksey Shipilev]

On 04/26/2018 09:33 PM, Roman Kennke wrote:
> I extract this from the big partial-traversal patch.
> 
> 1. Move constructor definition from .inline.hpp file to make compiler
> happy (on aarch64). Else we'd have to mark it inline to avoid multiple
> definition error.
> 
> 2. Define assignment/copy operator. I need this in partial-traversal to
> allow code like _root_regions_iterator = ...
> 
> Test: hotspot_gc_shenandoah
> 
> http://cr.openjdk.java.net/~rkennke/shhrs-changes/webrev.00/

OK

-Aleksey