* catch the if(k = b) cases, maybe require all assignments to be in parentheses
(but some few exceptions like toplevel, nested assignments)
+main/driver:
+* delete output file if we had an error
+
Spec-Status:
-(only test datasets tried yet)
164.gzip: works
175.vpr: works
-176.gcc: not ok
+176.gcc: sometimes works...
181.mcf: works
186.crafty: works (~though an asm is replaced with a stub)
-253.perlbmk: not ok
-254.gap: not ok
+253.perlbmk: works
+254.gap: works
255.vortex: works
256.bzip2: works
300.twolf: works