Rule proposal: prefer-error-cause

[fisker]

When throwing a new error in try/catch or Promise#catch, should add the old error as new error's cause property.

• "Error Cause" proposal

Fail

try {} catch {
	throw new Error('oops');
}

// (I'm not sure about this)
try {} catch (error) {
	error.message = 'oops';
	throw error;
}

promise.catch(() => {
	throw new Error('oops');
})

// Same as above
promise.then(null, () => {
	throw new Error('oops');
})

Pass

try {} catch (error) {
	throw new Error('oops', {cause: error});
}

promise.catch((error) => {
	throw new Error('oops', {cause: error});
})

[sindresorhus]

This is now accepted.

[sindresorhus]

If anyone wants to work on this, see the initial attempt and feedback in #1793.