Add SectionContext

[TheLimeGlass]

Suggestion

Add SomeNameSectionContext so that syntaxes can use TriggerSection#getSectionContext(Example.class) similar to StructureData but for Sections

Why?

This way addons and Skript's own syntaxes don't need to register the trigger as it's own event context. Which when using loadCode with an event. The ParserInstance#getCurrentSection gets cleared because of delayed calling. A trigger can then load later, and when it loads later, the getCurrentSection will not reflect properly. So we clear it when the loadCode is set.

This solution makes it so that you won't need to change the event context, but rather just collect the data from the current section so that the section itself can then use that data after it calls the trigger.

Other

This is used for custom sections with custom expressions like in my EffSecPlaceStructure at #5222

place structure "minecraft:end_city" at player's location:
    set includes entities to false
    set integrity to 0.9
    set pallet to 2
    set rotation to clockwise 90
    set mirror to left to right

Currently SectionContext is a class that is used on Structures, so some other name would be needed or maybe that itself needs a rename.

Agreement

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