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Shane Kerr authored
In cases where we use values outside of normal character range (-128 to 127 or 0 to 255) to indicate special things, like EOF, we need to insure that we can hold these values. To do that, we use an int. It turns out that the default type conversions also meant that our JSON conversion from strings would break in some cases. A test was added to show that, and to confirm the fix.
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