RFR: 8267374: (macos) Left Option+Up/Down arrow dont traverse to beginning/end of line in textarea [v3]

[Prasanta Sadhukhan]

On Thu, 23 Jun 2022 19:21:03 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> [JDK-8151136](https://bugs.openjdk.org/browse/JDK-8151136) was about the handling of the right alt key? It had the instructions for windows and linux, and that fix added the case for macOS. I do not think it should be reverted. Probably the shortcuts should take care about that right-option key.

But if you take a look now, that test only do the test for linux and all other instructions for other platforms are removed. I couldn't find the JBS issue which did the removal but I guess it was done for a cause.

Also, I couldn't find any shortcuts for right-option key...It seems, both left and right option key has same keycode from native NSAlternateKeyMask

If you still insist on reverting, I will request to let this PR to tackle only Left Option for now. I will file another issue to take a look at Right Option Key.

-------------

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