[Cpptool-develop] update

[Sven R. <rei...@ma...>]

I got rename temp to use the expr mutator. As a consequence, all existing 
tests pass now. However, the code is a bit of a mess; I'll try to clean it 
up. This should probably use a node/property visitor, but their mechanics 
isn't clear to me yet. Also, I suspect it won't work with some types of 
statements; tested so far are declarations, return, and expression 
statements.

Cheers,
Sven.

-- 
Sven Reichard
Dept. of Math. Sci.
University of Delaware
rei...@ma...