Applying decorators to parameters defined in a class' constructor is ignored, as no Lua code is generated related to them.

Example: https://typescripttolua.github.io/play/#code/GYVwdgxgLglg9mABAEQKYTgJwIZVQCgEpEBvAKEUU1ShEyXwssSm0wHMaAuRbMATwA0TSgAdMcUakxR+AaVT8e4ACapgMMKhXDmiUW2wBbGtICSYNQA8eYEEYBG03YmIBeAHykAvgG4y3mRkEAA22ADO4YgAYnBwpCKIAPRJiAACaBg4eESIMFEw7GBY2omiIA4hMBCIGGDhUJgg0Fj4GehYuATE5ZXVVKjYKggh-Ig2iHaO0sQkgYkp6ZmdOcQA7lgA1lFZ1NCjZRVVNSZQABZwKm3L2d2ISogNmJrss4GBQA (try to remove the decorator from the method to see that its code is no longer emitted).