Changeset 9325:dd82368c5370
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base: Encapsulate the underlying fields in AddrRange

This patch makes the start and end address private in a move to
prevent direct manipulation and matching of ranges based on these
fields. This is done so that a transition to ranges with interleaving
support is possible.

As a result of hiding the start and end, a number of member functions
are needed to perform the comparisons and manipulations that
previously took place directly on the members. An accessor function is
provided for the start address, and functions are added to merge two
ranges, and test if an address is within a range. As a result of the
latter the != and == operator is also removed in favour of the member
function. A member function that returns a string representation is
also created to allow debug printing.

In general, this patch does not add any functionality, but it does
take us closer to a situation where interleaving (and more cleverness)
can be added under the bonnet without exposing it to the user. More on
that in a later patch.

util/regress all passing (disregarding t1000 and eio)