This patch revives the Static Argument Transformation, thanks to
Max Bolingbroke.  It is enabled with 
	-fstatic-argument-transformation
or	-O2

Headline nofib results

                  Size    Allocs   Runtime
Min             +0.0%    -13.7%    -21.4%
Max             +0.1%     +0.0%     +5.4%
Geometric Mean  +0.0%     -0.2%     -6.9%