rb_vm_localjump_error  783 eval.c         	rb_vm_localjump_error("no block given", Qnil, 0);
rb_vm_localjump_error 1008 vm.c           	rb_vm_localjump_error("no block given", Qnil, 0);
rb_vm_localjump_error 1363 vm.c           	rb_vm_localjump_error("unexpected break", val, TAG_BREAK);
rb_vm_localjump_error  972 vm_insnhelper.c 	    rb_vm_localjump_error("break from proc-closure", throwobj, TAG_BREAK);
rb_vm_localjump_error 1031 vm_insnhelper.c 	rb_vm_localjump_error("unexpected return", throwobj, TAG_RETURN);
rb_vm_localjump_error 2442 vm_insnhelper.c 	rb_vm_localjump_error("no block given (yield)", Qnil, 0);