Fix HOC data props with custom type names

[jlkiri]

This PR addresses the following issue: #2160

When custom operation result type name is specified by operationResultSuffix config option, React Apollo HOC props are generated with a wrong operation type name. This PR fixes the way HOC props are generated.

Expected example (with operationResultSuffix set to Response):

export type BooksProps<TChildProps = {}> = Partial<
  ReactApollo.DataProps<BooksQueryResponse, BooksQueryVariables>
> &
  TChildProps;

[dotansimha]

Perfect, thank you @jlkiri !