[PATCH 2/6] Introduce `pre_expanded sals'

[Tom Tromey]

>>>>> "Sergio" == Sergio Durigan Junior <sergiodj@redhat.com> writes:

Sergio> This patch introduces the `pre_expanded sals'.  Tom, please, if
Sergio> you have additional comments to make regarding this
Sergio> modification, feel free to reply to this message.

This is just a way for decode_line_1 to tell the breakpoint code that
the returned sals has multiple locations but should still create just a
single breakpoint.  We needed this because a given SystemTap probe name
may have multiple locations.

This patch by itself doesn't introduce any behavior changes.

Tom