[PATCH] Fix the broken aha.c test

[Jim Stichnoth]

In the test suite, MultiSource/Applications/aha/aha.c makes an invalid
memory reference.  A loop inside main() sets global numi=1 and calls
fix_operands(i=0), which executes:

...
   if (i == numi - 1) {         // If this is the last insn:
      rs = numi + RI0 - 2;      // Second from last reg.
...
      rt = rs - 1;              // Third from last reg.
      if (pgm[i-1].opnd[0] != rt && ...
          ... && rt >= RI0) {
...
      }
   }

pgm is a global array of structs.

One can see that pgm[] is being illegally dereferenced with index -1.

One can also see that the last condition clause, "rt>=RI0", is equivalent
to "numi >= 3".  The attached patch moves this clause to the beginning of
the condition, giving the same result without the illegal reference.

Jim
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