Previously, only certain values of the 3rd argument triggered a
deprecation warning.
First step for fix for bug #18797. Support for the 3rd argument
will be removed after the release of Ruby 3.2.
Fix minor fallout discovered by the tests.
Co-authored-by: Nobuyoshi Nakada <nobu@ruby-lang.org>
Racc calls `Array#sort!` to build a state transition table. As
`Array#sort!` is not a stable sort, the output may differ depending upon
the environment.
This changeset makes the sort stable manually, and updates all
expectation files.
