#60565

This code pattern indicates that the type should be nullable

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

update internal API to allow parameter label to be an offset-range of its the signature label, #56337

Introduces the concept of a re-trigger character to the signature help provider. This is a seperate set of characters that are registered with the provider. Typing a retrigger character fires a new signature help request if signature help is already showing.

#54972

Using a custom version of the node typings is causing a lot of pain while trying to upgrade our build to use `@types` instead of the `d.ts` files we have to maintain. I believe we primarily maintain our own version for two reason:

- Custom require function
- setTimeout and other timer functions return NodeJs.timer instead of a number

These can both be delt with, the first by using interface augmentation and the second by switching to use any types for timer. I believe that the pain of maintaining our own node `d.ts` outweighs the benefits here

This change switches us to use the standard @types/node package for our node typings