examples/lambda.av

## examples/lambda.av

let three = (lambda (x,y) -> x + y end)(1, 2);
println(three);

let add = lambda (x,y) ->
  x + y
end;

three = add(1, 2);
println(three);

## defined by fn syntax(only valid since 5.2.4)

let add = fn(x, y) { x + y };

p(add(99, 1));