rb_marshal_define_compat 2229 complex.c          rb_marshal_define_compat(rb_cComplex, compat, nucomp_dumper, nucomp_loader);
rb_marshal_define_compat 1957 encoding.c         rb_marshal_define_compat(rb_cEncoding, Qnil, NULL, enc_m_loader);
rb_marshal_define_compat   31 ext/-test-/marshal/compat/usrcompat.c     rb_marshal_define_compat(newclass, oldclass, usr_dumper, usr_loader);
rb_marshal_define_compat  573 include/ruby/intern.h void rb_marshal_define_compat(VALUE newclass, VALUE oldclass, VALUE (*dumper)(VALUE), VALUE (*loader)(VALUE, VALUE));
rb_marshal_define_compat 1323 range.c            rb_marshal_define_compat(rb_cRange, rb_cObject, range_dumper, range_loader);
rb_marshal_define_compat 2581 rational.c         rb_marshal_define_compat(rb_cRational, compat, nurat_dumper, nurat_loader);
rb_marshal_define_compat  992 vm_backtrace.c     rb_marshal_define_compat(rb_cBacktrace, rb_cArray, backtrace_dump_data, backtrace_load_data);