UNKNOWN_NODE     3734 compile.c      	    UNKNOWN_NODE("setup_arg", argn);
UNKNOWN_NODE     3972 compile.c      		    UNKNOWN_NODE("NODE_CASE", vals);
UNKNOWN_NODE     4054 compile.c      		UNKNOWN_NODE("NODE_WHEN", vals);
UNKNOWN_NODE     4488 compile.c      		    UNKNOWN_NODE("NODE_RESBODY", narg);
UNKNOWN_NODE     6165 compile.c      	UNKNOWN_NODE("iseq_compile_each", node);