(unwi_dyn_remote_find_proc_info): Maintain as->dyn_info_list_addr as a cache of
the most recently obtained dyn-info-list address.
(Logical change 1.61)
(intern_dyn_info): Skip over padding rather than fetching it.
Start intern_regions() at address of first region, not just at the next
sequential address.
(unwi_dyn_remote_find_proc_info): Allocate "di" dynamically (it needs to persist
until put_unwind_info() is called).
(Logical change 1.56)
Skip over "prev_addr". Read start/end-IP directly into the "di" structure,
not into temporary variables. Skip padding by directly adjusting the
address (don't bother fetching padding values; that only slows things down).
Return 0 only if we really did find dynamic unwind info.
(Logical change 1.55)
