Commit [r3061] Maximize Restore History

* libdwarf no longer caches the location description list

internally. This will improve performance and simplify memory
management.
* dwarf_loclist_n() should instead return a copy for location
description stored in attributes so that the application who calls
dwarf_dealloc() to free the returned list will not cause a crash.

kaiwang27 2014-06-02

changed /trunk/libdwarf/libdwarf_loclist.c
changed /trunk/libdwarf/dwarf_loclist.c
changed /trunk/libdwarf/libdwarf_init.c
changed /trunk/libdwarf/_libdwarf.h
changed /trunk/libdwarf/libdwarf.h
/trunk/libdwarf/libdwarf_loclist.c Diff Switch to side-by-side view
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/trunk/libdwarf/dwarf_loclist.c Diff Switch to side-by-side view
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/trunk/libdwarf/libdwarf_init.c Diff Switch to side-by-side view
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/trunk/libdwarf/_libdwarf.h Diff Switch to side-by-side view
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/trunk/libdwarf/libdwarf.h Diff Switch to side-by-side view
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