pcc_reapply branch: segfault in t/op/gc.t from r41680

[Allison Randal]

James E Keenan wrote:
> 
> Everything was smoldering fine up through r41777, where I broke for the 
> night.  But when I came back the next day and 'svn up', I found that 
> 'make smolder_coretest' would no longer complete.

This was caused by a partial patch for return handling that I applied so 
Tene and I could collaborate on it. I've set it up now (r41754) so a 
default checkout gets the old code (which is working but missing some 
features), while Tene and I (and others) can keep working together on 
the final features.

Allison