Value passed to ad hoc union ctor/factory can be normalized via "part…

…ial method"

fix tests

update analyzer releases

fix tests

Utf8JsonReaderHelper has an overload with IUtf8JsonFactory

fix test

fix code generation for operators without corresponding static abstra…

…ct interface

fix STJ issue with nullable smart enums/value objects

#19

Improve error message in ad hoc unions' methods "AsFoo"

analyzer & co. must use the custom SwitchMapStateParameterName if con…

…figured