* adopt paths.node over path

* fix strict null

* remove hacky typing inlabel.test.ts

Fixing errors and adding some null supressions in code/windows

Replaces many loops of the form:

```js
for (let i = 0; i < elements.length; ++i) {
    const i = elements[i];
   ...
}
```

with:

```js
for (const element of elements) {
    ...
}
```

Mix of a horrible regex based find/replace and manual touch ups

related to #63897

related to #62716

In these cases, the programmer has explicitly indicated that the type should be nullable