Emit 64-bit reg names for DEADREGS annotations on x86-64 binaries.

src/base/SMPInstr.cpp

...it/trimmed-sorted-save-busybox.psexe.annot.REMOVED.git-id

tests/commit/trimmed-sorted-save-bzip2.psexe.annot

tests/commit/trimmed-sorted-save-destripe.psexe.annot

...mit/trimmed-sorted-save-ffmpeg.psexe.annot.REMOVED.git-id

...rimmed-sorted-save-firefox-bin.psexe.annot.REMOVED.git-id

...mmit/trimmed-sorted-save-gedit.psexe.annot.REMOVED.git-id

...ommit/trimmed-sorted-save-gimp.psexe.annot.REMOVED.git-id

...d-sorted-save-gnome-calculator.psexe.annot.REMOVED.git-id

...ommit/trimmed-sorted-save-gnome-character-map.psexe.annot

...mmit/trimmed-sorted-save-gnome-control-center.psexe.annot

...s/commit/trimmed-sorted-save-gnome-dictionary.psexe.annot

...immed-sorted-save-gnome-file-share-properties.psexe.annot

.../commit/trimmed-sorted-save-gnome-font-viewer.psexe.annot

tests/commit/trimmed-sorted-save-gnome-help.psexe.annot

tests/commit/trimmed-sorted-save-gnome-keyring-3.psexe.annot

...rted-save-gnome-keyring-daemon.psexe.annot.REMOVED.git-id

tests/commit/trimmed-sorted-save-gnome-keyring.psexe.annot

...mmed-sorted-save-gnome-nettool.psexe.annot.REMOVED.git-id

tests/commit/trimmed-sorted-save-gnome-open.psexe.annot