RFR: 8253524: C2: Refactor code that clones predicates during loop unswitching [v2]

[Roland Westrelin]

On Thu, 24 Sep 2020 05:49:53 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Roland Westrelin has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   code style
>
> src/hotspot/share/opto/loopPredicate.cpp line 298:
> 
>> 296: // Clone loop predicates to cloned loops when unswitching a loop.
>> 297: void PhaseIdealLoop::clone_predicates_to_unswitched_loop(IdealLoopTree* loop, const Node_List& old_new, ProjNode*&
>> iffast, ProjNode*& ifslow) { 298:   LoopNode* head  = loop->_head->as_Loop();
> 
> Extra whitespace after `head`

I'll remove the white space before I integrate the change.

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PR: https://git.openjdk.java.net/jdk/pull/317