Create public facing setting for nextCursorPrediction.enabled

[alexdima]

[ulugbekna]

The new setting is "github.copilot.nextEditSuggestions.extendedRange": true
It uses setting migration to update user settings but also respects the old setting if used by an a/b exp.

verification

part 1: setting works

1. set "github.copilot.nextEditSuggestions.extendedRange": true and check if you get NES farther than 5 lines below/above the line with cursor
   for example: by changing a fn param name and see if NES suggests to update a reference to it that's farther down than 5 lines below

part 2: migration works

1. have old setting "github.copilot.chat.advanced.inlineEdits.nextCursorPrediction.enabled": "onlyWithEdit" (also "github.copilot.chat.advanced.inlineEdits.nextCursorPrediction.enabled": "jump") in your settings.json
2. reload vscode
3. ensure if that setting gets changed to "github.copilot.nextEditSuggestions.extendedRange": true

[rzhao271]

Not seeing any of those settings in the Settings editor. Maybe I need to wait for the next version?

[jruales]

Verified

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Not seeing any of those settings in the Settings editor. Maybe I need to wait for the next version?

@rzhao271
I saw the setting "github.copilot.chat.advanced.inlineEdits.nextCursorPrediction.enabled" available there.
The settings "github.copilot.chat.advanced.inlineEdits.nextCursorPrediction.enabled" and "github.copilot.chat.advanced.inlineEdits.nextCursorPrediction.enabled" are intentionally not there because they are deprecated, but if you put them there, when you reload vs code, it will replace them with the new setting