Ruby

merge revision(s) 1b89b99941548fdb65305dd9a412082e7fdba45a: [Backport #17534]

 Mark pattern labels as unremoveable Peephole optimization doesn't play well with find pattern at least. The only case when a pattern matching could have unreachable patterns is when we have lasgn/dasgn node, which shouldn't happen in real-life. Fixes https://bugs.ruby-lang.org/issues/17534 --- compile.c | 2 +- test/ruby/test_pattern_matching.rb | 10 ++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)