New codegen failing test-cases

I fired up the new codegen and ran make fast on the regression suite and the following new tests started failing: 3207(normal) 4030(normal) cgrun016(normal) cgrun045(normal) cgrun051(normal) dsrun005(normal) dsrun007(normal) dsrun008(normal) exceptionsrun001(normal) exceptionsrun002(normal) ffi021(normal) simplrun010(optc) strun002(optc) I plan on investigating them in further detail. Cheers, Edward