branches: 1.1.1.8.24; 1.1.1.8.36;
import GCC 4.1-branch from 20080831 / svn 139820.

this fixes at least these GCC PR's:

middle-end/35163
target/34393
middle_end/34150
middle-end/34627
middle-end/33631
c++/34950
c++/34774
c++/35007
libstdc++/20448
libstdc++/20451