src/vs/workbench/contrib/terminal/browser/terminalTypeAheadAddon.ts/CharacterPrediction/rollForwards
class CharacterPrediction:	rollForwards(cursor: Cursor, input: string) {
		if (!this.appliedAt) {
			return ''; // not applied
		}

		return cursor.clone().moveTo(this.appliedAt.pos) + input;
	}