Set .name on custom instances

[ltvolks]

Fixes #74

[coveralls]

Coverage increased (+0.008%) to 98.182% when pulling ca94a0c on ltvolks:tostring-repr into bab0391 on restify:master.

[coveralls]

Coverage increased (+0.008%) to 98.182% when pulling ca94a0c on ltvolks:tostring-repr into bab0391 on restify:master.

[coveralls]

Coverage increased (+0.008%) to 98.182% when pulling ca94a0c on ltvolks:tostring-repr into bab0391 on restify:master.

[DonutEspresso]

Thanks @ltvolks! Can I just confirm that the problem is this:

Input:

const err = require('restify-errors');
err.makeConstructor('FooBarError');

var e = new err.FooBarError('boom');
console.warn(JSON.stringify(e));
console.warn(e.toString());

Output:

{"code":"FooBar","message":"boom"}
ErrCtor: boom

[DonutEspresso]

Oops, somehow I missed #74. Thanks for the detailed breakdown and context, really appreciate it! @yunong @retrohacker, this LGTM, any concerns?

[retrohacker]

LGTM 👍

[retrohacker]

Released as 5.0.0