RFR: 8267374: (macos) Left Option+Up/Down arrow dont traverse to beginning/end of line in textarea [v5]

[Sergey Bylokhov]

On Tue, 28 Jun 2022 04:54:24 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> We could change it back but then we should take care of all that followup changes.
>
>> That's not a mistake, the swing was updated in a few places here and there to support it, for example: https://bugs.openjdk.org/browse/JDK-8194873
> 
> I dont think @prrace and me are contesting need of ALT_GRAPH in swing, which was fixed by the above bug..I guess it was being contested for macos only so we are not going to revert 8194873 but only 8151136 (which was done to convert right alt to altgraph for macos)

That is similar issue on Windows since we unconditionally set the right alt key to be ALT_GRAPH independently on the current keyboard layout, it is just a button location which is the same on win and mac. So probably right now it is better to update the spec of that flag. 

To workaround that change the fix for [JDK-8194873](https://bugs.openjdk.org/browse/JDK-8194873) updated all our L&F which are used on windows, obviously the Aqua was missed. I think we should update the Aqua in a similar way.

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PR: https://git.openjdk.org/jdk/pull/9230