Cleanup dynamically allocated memory before exit in tests in a few
places where missing. While such cleanups right before exit do not
usually make much sense (as the operating system would cleanup anyway,
so manual cleanups only burn CPU cycles), we will want to catch any
potential problems in libunwind related to the cleanups. This also stops
valgrind complaining about unreleased memory.
Compiling the tests with -Wextra results to lots of warnings for unused
parameters. Annotate these cases with the `unused' attribute to avoid
the warnings.
(resume): Likewise.
(nop): Remove.
(main): Don't cast function pointer to different prototypes. That's apparently
not allowed. icc v8.0 complains about it and GCC 3.5 will actually
generate crashing code when this is done. Talk about terminated with
extreme prejudice!
(Logical change 1.213)
