(_Uia64_install_context): Drop "loadrs" argument and adjust code accordingly.
(_Uia64_install_context): Drop "loadrs" argument and adjust code accordingly.

(Logical change 1.47)

vtjnash/libunwind,tony/libunwind,project-zerus/libunwind,wdv4758h/libunwind,tony/libunwind,adsharma/libunwind,jrmuizel/libunwind,maltek/platform_external_libunwind,SyndicateRogue/libunwind,zeldin/platform_external_libunwind,Keno/libunwind,frida/libunwind,CyanogenMod/android_external_libunwind,martyone/libunwind,androidarmv6/android_external_libunwind,yuyichao/libunwind,ehsan/libunwind,lat/libunwind,dropbox/libunwind,libunwind/libunwind,igprof/libunwind,DroidSim/platform_external_libunwind,djwatson/libunwind,project-zerus/libunwind,rntz/libunwind,bo-on-software/libunwind,dropbox/libunwind,lat/libunwind,dreal-deps/libunwind,djwatson/libunwind,geekboxzone/mmallow_external_libunwind,atanasyan/libunwind,pathscale/libunwind,CyanogenMod/android_external_libunwind,DroidSim/platform_external_libunwind,wdv4758h/libunwind,0xlab/0xdroid-external_libunwind,mpercy/libunwind,frida/libunwind,androidarmv6/android_external_libunwind,Keno/libunwind,zeldin/platform_external_libunwind,fillexen/libunwind,tkelman/libunwind,adsharma/libunwind,krytarowski/libunwind,igprof/libunwind,zliu2014/libunwind-tilegx,vegard/libunwind,evaautomation/libunwind,fdoray/libunwind,mpercy/libunwind,zliu2014/libunwind-tilegx,ehsan/libunwind,cloudius-systems/libunwind,rntz/libunwind,frida/libunwind,Chilledheart/libunwind,unkadoug/libunwind,jrmuizel/libunwind,vtjnash/libunwind,geekboxzone/lollipop_external_libunwind,mpercy/libunwind,libunwind/libunwind,SyndicateRogue/libunwind,atanasyan/libunwind-android,Chilledheart/libunwind,tony/libunwind,olibc/libunwind,cms-externals/libunwind,jrmuizel/libunwind,fillexen/libunwind,maltek/platform_external_libunwind,Keno/libunwind,fdoray/libunwind,martyone/libunwind,zliu2014/libunwind-tilegx,rntz/libunwind,djwatson/libunwind,android-ia/platform_external_libunwind,ehsan/libunwind,joyent/libunwind,android-ia/platform_external_libunwind,dagar/libunwind,dagar/libunwind,joyent/libunwind,dagar/libunwind,tronical/libunwind,atanasyan/libunwind-android,wdv4758h/libunwind,Chilledheart/libunwind,rogwfu/libunwind,0xlab/0xdroid-external_libunwind,libunwind/libunwind,bo-on-software/libunwind,androidarmv6/android_external_libunwind,unkadoug/libunwind,joyent/libunwind,geekboxzone/mmallow_external_libunwind,rantala/libunwind,maltek/platform_external_libunwind,olibc/libunwind,atanasyan/libunwind-android,dropbox/libunwind,tkelman/libunwind,olibc/libunwind,geekboxzone/lollipop_external_libunwind,CyanogenMod/android_external_libunwind,yuyichao/libunwind,geekboxzone/lollipop_external_libunwind,geekboxzone/mmallow_external_libunwind,tronical/libunwind,vegard/libunwind,cms-externals/libunwind,tkelman/libunwind,DroidSim/platform_external_libunwind,atanasyan/libunwind,SyndicateRogue/libunwind,martyone/libunwind,evaautomation/libunwind,rogwfu/libunwind,project-zerus/libunwind,cloudius-systems/libunwind,atanasyan/libunwind,0xlab/0xdroid-external_libunwind,rantala/libunwind,lat/libunwind,igprof/libunwind,dreal-deps/libunwind,adsharma/libunwind,evaautomation/libunwind,fillexen/libunwind,dreal-deps/libunwind,vegard/libunwind,pathscale/libunwind,cloudius-systems/libunwind,tronical/libunwind,fdoray/libunwind,pathscale/libunwind,bo-on-software/libunwind,cms-externals/libunwind,rogwfu/libunwind,android-ia/platform_external_libunwind,yuyichao/libunwind,krytarowski/libunwind,krytarowski/libunwind,vtjnash/libunwind,zeldin/platform_external_libunwind,rantala/libunwind,unkadoug/libunwind