- Refactor is() to be faster in case NULL is given as class - Change cast() core functionality to:   . No longer change the object given   . Throw a lang.ClassCastException in case of errors   . Throw a lang.ClassNotFoundException in case the given type does not exist   . No longer support primitives (will result in a lang.IllegalArgumentException)   . Return xp::null() if NULL is given # The latter implements functionality suggested in RFC #0010
- Refactor is() to be faster in case NULL is given as class
- Change cast() core functionality to:
  . No longer change the object given
  . Throw a lang.ClassCastException in case of errors
  . Throw a lang.ClassNotFoundException in case the given type does not exist
  . No longer support primitives (will result in a lang.IllegalArgumentException)
  . Return xp::null() if NULL is given
# The latter implements functionality suggested in RFC #0010

git-svn-id: 526f3b90ad6d9b1dfe840af828070ca3d99521ac@11658 d2cacbed-c0f6-0310-851a-9dad52fc623a

johannes85/core