all.equal.envRefClass()  gets smarter


git-svn-id: https://svn.r-project.org/R/trunk@66585 00db46b3-68df-0310-9c12-caf00c1e9a41
slightly more stringent test for  Bug 15937


git-svn-id: https://svn.r-project.org/R/trunk@66586 00db46b3-68df-0310-9c12-caf00c1e9a41
+ three comments


git-svn-id: https://svn.r-project.org/R/trunk@66587 00db46b3-68df-0310-9c12-caf00c1e9a41
deparse2buff(): a slightly better, still primitive way for S4 --- 
probably solves one of the all.equal() issues.


git-svn-id: https://svn.r-project.org/R/trunk@66588 00db46b3-68df-0310-9c12-caf00c1e9a41
- tweak for envRefClass with no (non-trivial) method
- better grammar (singular/plural) in a few cases


git-svn-id: https://svn.r-project.org/R/trunk@66589 00db46b3-68df-0310-9c12-caf00c1e9a41