fix mcmapply to parallelize for jobs > 1, not > mc.cores

git-svn-id: https://svn.r-project.org/R/trunk@65790 00db46b3-68df-0310-9c12-caf00c1e9a41
Factored out non-tracking version of mkEVPROMISE to mkEVPROMISE_NR and
removed environment argument from both, since evaluated promises
should have their environment set to R_NilValue.


git-svn-id: https://svn.r-project.org/R/trunk@65792 00db46b3-68df-0310-9c12-caf00c1e9a41
Renamed mkEVPROMISE and mkEVPROMISE_NR to R_mkEVPROMISE and
R_mkEVPROMISE_NR and moved to memory.c.


git-svn-id: https://svn.r-project.org/R/trunk@65793 00db46b3-68df-0310-9c12-caf00c1e9a41
Try to avoid duble evaluation of argument in auto-printing.


git-svn-id: https://svn.r-project.org/R/trunk@65794 00db46b3-68df-0310-9c12-caf00c1e9a41