+<h3>Duplicate implementation for many STG macros</h3>
+
+This has been discussed at length already. It has caused a couple of
+nasty bugs due to subtle untracked divergence in the macro
+translations. The macro-expander really should be pushed up into the
+Abstract C phase, so the problem can't happen.
+<p>
+Doing so would have the added benefit that the NCG could be used to
+compile more "ways" -- well, at least the 'p' profiling way.
+