note 42214 deleted from migration5.incompatible by nlopess

Note Submitter: dave@corecomm.us ---- I think the newly case-preserving (fixed for user-defined classes) behavior of get_class() should be added to the list of backward-incompatible changes. I know that, unfortunately, I've written many applications that test get_class() against a literal (lowercase) string. I will have to rewrite these -- perhaps testing against strtolower(get_class($foo)) -- for the application to behave correctly with both PHP4 and PHP5. It's likely that this concern extends to many of the other Classes/Objects functions that take or a string classname value as well.