Changes the behaviour of the various
g_test_assert_expected_messages() and the various
g_test_trap_assert_*() macros to not abort to program, but instead
g_test_fail() and continue. (This also changes the behavior of
g_test_fail() so that it will not cause the test program to abort
after completing the failed test.)
Note that the
g_assert() macros are not
affected by this.
This function can only be called after g_test_init().