extensions/typescript-language-features/src/languageFeatures/tagClosing.ts/TagClosing/getInsertionPositions
class TagClosing:	private getInsertionPositions(editor: vscode.TextEditor, position: vscode.Position) {
		const activeSelectionPositions = editor.selections.map(s => s.active);
		return activeSelectionPositions.some(p => p.isEqual(position))
			? activeSelectionPositions
			: position;
	}