Better LSP formatting for operation built-in response shapes

[KieranP]

I'm using built-in responses shapes, but the LSP formatter from the VSCode extension is not formatting them in the best way.

Current output after formatting:

@summary("Create User")
op create(@body body: CreateUserRequest): (CreatedResponse &
  Body<User>) | (BadRequestResponse & Body<ValidationError>);

Contrast with using LSP on custom response shapes:

@summary("Create User")
op create(@body body: CreateUserRequest): {
  @statusCode statusCode: 201;
  @body body: User;
} | {
  @statusCode statusCode: 404;
  @body error: NotFoundError;
} | {
  @statusCode statusCode: 422;
  @body error: ValidationError;
};

Ideal output for built-in response shapes would be:

@summary("Create User")
op create(@body body: CreateUserRequest): (
  CreatedResponse & Body<User>
) | (
  BadRequestResponse & Body<ValidationError>
);