Static methods on resources don't have any validation on the resource name

Currently I think this is a valid component:

```wasm
(component
  (import "[static]a.b" (func)))
```

since there's no validation about `[static]...` annotated-functions other than "it's a function". There could be no resources named `a`, though, in the component or there could be multiple (e.g. named through different paths through instances).