RFR: 7148092: [macosx] When Alt+down arrow key is pressed, the combobox popup does not appear. [v3]

[Sergey Bylokhov]

On Thu, 25 Aug 2022 16:34:32 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> When comboBox have focus, pressing Alt+Down (or Up) should render the popup which is not happening for Aqua L&F.
>> 
>> Fix is to add toggleAction for Alt+Down/Up keys as has been done for [MetalLookAndFeel](https://github.com/openjdk/jdk/blob/master/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalLookAndFeel.java#L912)
>> 
>> closed problemlisted test is used to check the fix.
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use camelCase

Then the test mentioned above should be updated as well to cover that extra?

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PR: https://git.openjdk.org/jdk/pull/10014