Rest element in array destructuring assignment should allow an array/object pattern

[JsonFreeman]

The following code gives an error, but according to section 12.14.5.3 of the ES6 spec, it should be allowed:

var a, b;
[...[a, b]] = [0, 1];
[...{ 0: a, 1: b }] = [0, 1];

[JsonFreeman]

Looks like this is caused by the call to checkReferenceExpression inside checkArrayLiteralAssignment. Probably should be checkDestructuringAssignment instead.