src/vs/editor/common/viewLayout/lineDecorations.ts/LineDecoration/equalsArr
class LineDecoration:	public static equalsArr(a: LineDecoration[], b: LineDecoration[]): boolean {
		const aLen = a.length;
		const bLen = b.length;
		if (aLen !== bLen) {
			return false;
		}
		for (let i = 0; i < aLen; i++) {
			if (!LineDecoration._equals(a[i], b[i])) {
				return false;
			}
		}
		return true;
	}