Corrige SimpleTypeInfoPrimitive.autobox()

Para dois casos especiais:

- int => Integer
- char => Character

Anteriormente estava incorretamente fazendo:

- int => Int
- char => Char

WAY-231
Merge pull request #125 in WAY/way from bugfix/WAY-231-simpletypeinfo.autobox-int-deveria to release/1.15.0

* commit '9939e086e7a1a77f38ca6a1400612a68a49edf86':
  Corrige SimpleTypeInfoPrimitive.autobox()