Enumerable extensions support

[davideicardi]

Load enumerable extensions by default.

[davideicardi]

It should be possible to write this code:

        var x = new int[] { 10, 30, 4 };

        var target = new Interpreter()
                                .Reference(typeof(System.Linq.Enumerable))
                                .SetVariable("x", x);

        Assert.AreEqual(x.Count(), target.Eval("x.Count()"));
        Assert.AreEqual(x.Average(), target.Eval("x.Average()"));
        Assert.AreEqual(x.First(), target.Eval("x.First()"));
        Assert.AreEqual(x.Last(), target.Eval("x.Last()"));
        Assert.AreEqual(x.Max(), target.Eval("x.Max()"));
        CollectionAssert.AreEqual(x.Skip(2).ToArray(), target.Eval<IEnumerable<int>>("x.Skip(2)").ToArray());
        CollectionAssert.AreEqual(x.Skip(2).ToArray(), target.Eval<IEnumerable<int>>("x.Skip(2)").ToArray());

[davideicardi]

Consider that only enumerable extensions that have primitive parameters will be supported. Other methods that takes lampda or delegate will not be supported.