[cvs-nhc98] Hat: speed up cEnter, and remove its NmType argument.

malcolm: Thu Apr 5 16:41:15 CEST 2001 Update of /usr/src/master/nhc/src/tracer/runtime In directory hinken:/tmp/cvs-serv9240/src/tracer/runtime Modified Files: io.c Log Message: Hat: speed up cEnter, and remove its NmType argument. Because cEnter is called on every reduction step, any improvement in its speed should go a long way. At the moment, it looks like we gain only about 1.5% by eliminating tests in C that are no longer useful. However, by eliminating its NmType argument, we hope that we can change some of the transformation/combinators, to produce much fewer NmType nodes in the file.