flow: also run module pass optimizations at code generation
flow: also run module pass optimizations at code generation

christianparpart/x0,christianparpart/x0,xzero/x0,christianparpart/x0,xzero/x0,xzero/x0,christianparpart/x0,xzero/x0,christianparpart/x0,christianparpart/x0,xzero/x0,xzero/x0,christianparpart/x0