src/vs/editor/common/model/bracketPairsTextModelPart/bracketPairsTree/ast.ts/ArrayListAstNode/deepClone
class ArrayListAstNode:	deepClone(): ListAstNode {
		const children = new Array<AstNode>(this._children.length);
		for (let i = 0; i < this._children.length; i++) {
			children[i] = this._children[i].deepClone();
		}
		return new ArrayListAstNode(this.length, this.listHeight, children, this.missingOpeningBracketIds);
	}