[C++ Patch PING] PR 31446 (+ 28639, 30299)

[Paolo Carlini]

Hi,

I'd like to ping once more for mainline this patch:

    PR31446: [4.2/4.3 regression] ICE with invalid template parameter
    http://gcc.gnu.org/ml/gcc-patches/2007-09/msg01933.html

The patch corrects a one-line oversight in recent work, and fixes at 
once PR 28639 and 30299 too ;)

Thanks in advance,
Paolo.