docs: Update the docParser to prevent max call stack errors [skip rel…

…ease] (#2342)

Sometimes the doc parser throws an `Maximum call stack exceeded" error. This happens when a type is self-referential, but not exported. Example:

```ts
type NestedType = string | number | { foo: NestedType }
```

If `NestedType` is referenced by an exported type, the doc parser will get into a recursive loop. This change adds symbol tracking per export to detect this case and will bail considering `NestedType` to be exported.

[category:Documentation]