canMangle = exportsInfo => {
	if (exportsInfo.otherExportsInfo.getUsed(undefined) !== UsageState.Unused)
		return false;
	let hasSomethingToMangle = false;
	for (const exportInfo of exportsInfo.exports) {
		if (exportInfo.canMangle === true) {
			hasSomethingToMangle = true;
		}
	}
	return hasSomethingToMangle;
}
@param {ExportsInfo} exportsInfo exports info
@returns {boolean} mangle is possible