Parser breaks if the directive is moved to the new line

[upcFrost]

Hi,

Parser seem to break if the directive is moved to a line different from where the field is. Example:

directive @x on FIELD_DEFINITION

type X {
    a: String
    @x
}

This is a valid syntax (or at least a widely recognized one), and it's frequently used when you have a lot of directives with extra args. The parser breaks trying to evaluate value type

Best regards,
Petr