This reverts commit 279fb0083a9c9fd4423068cb738762c7a169c9cc.

These test failures first appeared on irrelevant changes. It probably
came from changes in GitHub Actions instead of CRuby's.

Until we figure out how to fix these tests, let's skip them to make the
CI usable.

	[Bug #19969] Compact st_table after deleted if possible

	---
	 hash.c                 | 19 +++++++++++++++++++
	 st.c                   | 40 +++++++++++++++++++++++++++++-----------
	 test/ruby/test_hash.rb |  9 +++++++++
	 3 files changed, 57 insertions(+), 11 deletions(-)

At the time this test first started using `assert_raise_with_message`,
it did not touch `Encoding.default_internal`.

	[Bug #19985] Raise LoadError with the converted feature name

	`Kernel#require` converts feature name objects that have the `to_path`
	method such as `Pathname`, but had used the original object on error
	and had resulted in an unexpected `TypeError`.
	---
	 load.c                    | 14 +++++++++++---
	 test/ruby/test_require.rb | 26 +++++++++++++++++++++-----
	 2 files changed, 32 insertions(+), 8 deletions(-)

	[Bug #19754] Make `IO::Buffer#get_string` check `offset` range
	 (#8016)

	---
	 io_buffer.c                 | 3 +++
	 test/ruby/test_io_buffer.rb | 8 ++++++++
	 2 files changed, 11 insertions(+)

    Fix memory leak in complemented method entries

    [Bug #19894]

    When a copy of a complemented method entry is created, there are two
    issues:

    1. IMEMO_FL_USER3 is not copied, so the complemented status is not
       copied over.
    2. In rb_method_entry_clone we increment both alias_count and
       complemented_count. However, when we free the method entry in
       rb_method_definition_release, we only decrement one of the two
       counters, resulting in the rb_method_definition_t being leaked.

    Co-authored-by: Adam Hess <adamhess1991@gmail.com>
    ---
     method.h                 |  5 +++--
     test/ruby/test_module.rb | 29 +++++++++++++++++++++++++++++
     vm_method.c              |  8 +++++---
     3 files changed, 37 insertions(+), 5 deletions(-)

	Fix Array#bsearch when block returns a non-integer numeric value

	---
	 array.c                 | 4 ++--
	 test/ruby/test_array.rb | 4 ++++
	 2 files changed, 6 insertions(+), 2 deletions(-)

If two threads are running, with one calling waitpid(-1), and another
calling waitpid($some_pid), and then $some_other_pid exits, we would
expect the waitpid(-1) call to retrieve that exit status; however, it
cannot actually do so until $some_pid _also_ exits.

This patch fixes the issue by unconditionally checking for pending
process group waits on SIGCHLD, and then allowing pending pid-only waits
to "steal" the notification.

[Fixes #19387]