CHP int defaults to 32b, even when machine/binary is 64b native

[fangism]

Object/traits/class_traits_types.cc:

static const count_ptr<const pint_const>
int_def_width_default(new pint_const(32));

The 32 should probably be un-hardcoded, to support 64b ints by default. Note: this may affect object dump test cases.