Request for reviews (S): 6959430: Make sure raw loads have control edge

[Vladimir Kozlov]

Thank you, Christian

Christian Thalinger wrote:
> src/share/vm/opto/graphKit.cpp:
> 
> In GraphKit::shared_lock you could call GraphKit::increment_counter
> instead of having duplicate code.

Good finding! I replaced code with call increment_counter().

Thanks,
Vladimir