FlowNode graph of switch-case broken on TS 5.5.x

[jfet97]

This is the code that causes problems:

type Payload =
| { _tag: "key", secret: string }
| { _tag: "cart", cart: [] }
| { _tag: "person", person: unknown }

declare const p: Payload

switch(p._tag) {
    case "key": {
        p.secret
        break
    }
    case "cart": {
        p.cart
        break
    }
    case "person": {
        p.person
        break
    }
    default: {
        p // never
    }
}

If you try to render the FlowNode(s) graph on p from within one case, you'll get the error $A.node.getText is not a function. This is due to changes on the data structures of flow nodes, after their attempt to increase monomorphization. Before TS 5.5 we got fn.switchStatement, now we have fn.node.switchStatement, but fn.node itself doesn't have the getText capability.

Will follow a small PR with a simple fix.