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d5c8fd2043
Fix Symbol#to_proc (rb_sym_to_proc) to be ractor safe In non-main ractors, don't use `sym_proc_cache`. It is not thread-safe to add to this array without a lock and also it leaks procs from one ractor to another. Instead, we create a new proc each time. If this results in poor performance we can come up with a solution later. Fixes [Bug #21354]