Improve CODEPTR propagation; improve function pointer shadowing analyses.

src/base/SMPBasicBlock.cpp

src/base/SMPFunction.cpp

src/base/SMPProgram.cpp

tests/commit/save-busybox.psexe.infoannot

tests/commit/save-bzip2.psexe.infoannot

tests/commit/save-destripe.psexe.infoannot

tests/commit/save-ffmpeg.psexe.infoannot.REMOVED.git-id

tests/commit/save-firefox-bin.psexe.infoannot

tests/commit/save-gedit.psexe.infoannot

tests/commit/save-gimp.psexe.infoannot.REMOVED.git-id

tests/commit/save-gnome-calculator.psexe.infoannot

tests/commit/save-gnome-character-map.psexe.infoannot

tests/commit/save-gnome-control-center.psexe.infoannot

tests/commit/save-gnome-dictionary.psexe.infoannot

...s/commit/save-gnome-file-share-properties.psexe.infoannot

tests/commit/save-gnome-font-viewer.psexe.infoannot

tests/commit/save-gnome-help.psexe.infoannot

tests/commit/save-gnome-keyring-3.psexe.infoannot

tests/commit/save-gnome-keyring-daemon.psexe.infoannot

tests/commit/save-gnome-keyring.psexe.infoannot