As of R 3.0, the "parser now incorporates code from Romain Francois'
parser package, to support more detailed computation on the code, such
as syntax highlighting, comment-based documentation, etc. Functions
getParseData() and getParseText() access the data." We should exploit
this in inlinedocs Parser Functions.

Attempt doc list to Rd list conversion, so we can generate Rd using
tools:::print.Rd. See code in etc/parseRd.R

Try to get more tests working: R CMD check and Rd conversion to
doclist checks.

Rd generation for attrSetter<- functions?

Functions with {} as default arguments => error. See
etc/default-function.R