Add LINQ support

[marinasundstrom]

IEnumerable<int> items = [];
var query = items.Where([Throws(typeof(FormatException), typeof(OverflowException))] (x) => x == int.Parse("10"));
var r = query.First();

Features

• LINQ operator support
• foreach support
• Implement your own deferred constructs that propagate exceptions

Use standards when possible

[marinasundstrom]

We could also try to exclude redundancy checks when LINQ methods are accessed but source not known.

[marinasundstrom]

Declaring exceptions for lambda expression should perhaps not be required in LINQ operation chains? They can be inferred. And perhaps leave an info diagnostic on the throwing nodes.