RLS falls on infinite compilation on polymorphic recursion

[Genarito]

Frist of all, thank you for this awesome plugin.

When you have code like this:

enum Tree<A> {
    Leaf(A),
    Node(Box<Tree<(A, A)>>)
}

fn size<A>(t: &Tree<A>) -> usize {
    match t {
        Tree::Leaf(_) => 1,
        Tree::Node(t) => size(t)
    }
}

fn main () {
    let tree = Tree::Leaf(4);
    println!("{}", size(&tree));
}

Where there is a polymorphic recursion which generates a problem with rustc as discussed in these issues (issue 1, issue 2).
It keeps compiling when you open VS Code, putting the CPU at a 100% load. It would be great if you could add a timeout to prevent this kind of problem when you are trying with this kind of concepts.

Thanks in advance and sorry about my English