ICE from 'Assertion res as int != 0 failed'

[bstrie]

Hitting an ICE while building the most recent incoming (9b88b5f) on Linux x86 (this is not the same Linux x86 machine that I've had trouble on in the past).

https://gist.github.com/3636226

[bstrie]

Er, disregard my spurious clicks.

[catamorphism]

I believe that make clean and then rebuilding should fix this problem, but it should still be fixed so that that won't be necessary.

[catamorphism]

Oops, dup of #3325.