branches: 1.1.1.2.40; 1.1.1.2.52;
import GCC-4.1 branch from 20070620 (revision 125891). this fixes 78
GCC PR's listed below, and also fixes some netbsd PR's.

30370
C++/28988
C++/30016
C++/30168
C++/30221
c++/28999
c++/30536
c++/30847
c++/30852
c++/30895
c++/31074
c++/31449
c++/31517
c++/31806
c++/31809
c/31520
debug/29906
debug/30189
inline-asm/32109
libstdc++/28125
libstdc++/30586
middle-end/24427
middle-end/29683
middle-end/30313
middle-end/30364
middle-end/30433
middle-end/30473
middle-end/30729
middle-end/30761
middle-end/31448
middle-end/32285
objc/27438
objc/30479
other/27843
preprocessor/30468:
rtl-optimization/28011
rtl-optimization/28173
rtl-optimization/28772
rtl-optimization/29329
rtl-optimization/29599
rtl-optimization/30643
rtl-optimization/30787
rtl-optimization/30931
rtl-optimization/31691
target/18989
target/19087
target/25448
target/26090
target/28623
target/28675
target/29487
target/30289
target/30483
target/30848
target/31022
target/31123
target/31137
target/31245
target/31361
target/31380
target/31480
target/31582
target/31641
target/31701
target/31876
target/32163
tree-opt/30045
tree-optimization/26643
tree-optimization/26854
tree-optimization/26998
tree-optimization/27087
tree-optimization/29446
tree-optimization/29925
tree-optimization/30212
tree-optimization/30590
tree-optimization/30823
tree-optimization/31632
tree-optimization/32353