Integer/BigInt Implicit Typing Bug

In the 7.4.1 release, I've found that it implicitly types INT_MIN,
-2147483648, as a 64-bit integer instead of a 32-bit integer.  Here's a test
case:

select "bit"(-2147483647);
               bit
----------------------------------
 10000000000000000000000000000001

select "bit"(-2147483648 + 1);
                               bit
------------------------------------------------------------------
 1111111111111111111111111111111110000000000000000000000000000001

-Patrick McNeill