RFR: 8254841: [macos] Enter or Exit events are shouldn't be displayed while resizing [v5]

[Phil Race]

On Tue, 21 Sep 2021 23:39:41 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> > _AppKit sets the value of this property to YES when a live resizing operation involving the view is underway. Use this property to determine when to optimize your view’s drawing behavior. Typically, you access this property from your drawRect: method and use the value to change the fidelity of the content you draw, or to draw your content more efficiently_
> 
> I did not check but I think it might be set when the "resize animation" is in progress.

That seems unlikely to generate a sequence of such events

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PR: https://git.openjdk.java.net/jdk/pull/5497