simplify and merge a bunch of code.  Instead of comparing against the min/max values for an integer type, compare against the min/max values we can prove contain the input.  This might be a tighter bound, so this is general goodness.
simplify and merge a bunch of code.  Instead of comparing against
the min/max values for an integer type, compare against the min/max
values we can prove contain the input.  This might be a tighter bound,
so this is general goodness.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@53446 91177308-0d34-0410-b5e6-96231b3b80d8

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