rb_tracearg_defined_class   80 ext/objspace/object_tracing.c     VALUE klass = rb_tracearg_defined_class(tparg);
rb_tracearg_defined_class   78 include/ruby/debug.h VALUE rb_tracearg_defined_class(rb_trace_arg_t *trace_arg);
rb_tracearg_defined_class  954 vm_trace.c         return rb_tracearg_defined_class(get_trace_arg());