Ruby

merge revision(s) fb4cf204a662a8cd9dafef6f31f2bd0db9129abe,fa0279d947c3962c3f8c32852278d3ebb964cb19: [Backport #17725]

 use me->def instead of me for opt_table `vm_opt_method_table` is me=>bop table to manage the optimized methods (by specialized instruction). However, `me` can be invalidated to invalidate the method cache entry. [Bug #17725] To solve the issue, use `me-def` instead of `me` which simply copied at invalidation timing. A test by @jeremyevans https://github.com/ruby/ruby/pull/4376 --- test/ruby/test_method.rb | 15 +++++++++++++++ vm.c | 11 +++++------ 2 files changed, 20 insertions(+), 6 deletions(-) should not share same `def` for specialized method Because the key of redefine table is `def`, `def` should be unique for each optimized method (`alias` is not allowed). --- array.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)