renamed hidden envRefMethodNames; catch invalid object$getClass()

git-svn-id: https://svn.r-project.org/R/trunk@66661 00db46b3-68df-0310-9c12-caf00c1e9a41
Solaris needs Rtanpi defined

git-svn-id: https://svn.r-project.org/R/trunk@66662 00db46b3-68df-0310-9c12-caf00c1e9a41
update location report

git-svn-id: https://svn.r-project.org/R/trunk@66663 00db46b3-68df-0310-9c12-caf00c1e9a41