2d9885c introduced some regressions. This addresses those.
* Don't throw return type notice or session write failure when in an exception
* Fix tests to properly return true/false since null is no longer falsy/successy
* Rerecord a few tests to accomodate difference in raised warnings
These were caused by the tests assuming default values for some session
configuration settings, in particular session.save_path and session.name.
The tests now explicitly set these settings in the --INI-- section.
These hopefully test a reasonable set of basic, error and variations for
the twenty or so session functions. Note however that they do not
test all the session configuration settings, nor do they test anything
with register_globals enabled.
Anatol Belski