preResolveTypes lose Maybe<> typing

[ghost]

Huge thanks for implementing preResolveTypes, it's beautiful!

It seems to be dropping all supplemental type info (maybe, array, ...anything else?) on primitive types though (strings, numbers, etc). This data is being retained on the wrappers around nested object types:

export type someFragment = {
  key: string;        # should be `Maybe<string>`
  anotherKey: string; # should be string[]
  finalKey: Maybe<Array<{ key: string }>>;
}

Related to #2159

Environment:

• OS: OSX 10.14.5
• @graphql-codegen/...: ^0.14.0
• NodeJS: 10.16.0

[dotansimha]

@markkahn I think I fixed it, can you please try? 1.4.1-alpha-1998a660.66

[ghost]

LGTM! from 742 ts errors -> 0

[dotansimha]

Fixed in 1.5.0 🎉