Add GDB pretty-printing support for svn mergeinfo data types: svn_merge_range_t, svn_mergeinfo_t.
Add GDB pretty-printing support for svn mergeinfo data types:
svn_merge_range_t, svn_mergeinfo_t.

* tools/dev/gdb-py/svndbg/printers.py
  (children_of_apr_array): New function.
  (SvnMergeRangePrinter, SvnRangelistPrinter, SvnMergeinfoPrinter): New
    pretty-printers.
  (SvnMergeinfoCatalogPrinter): Return the result as a formatted string
    rather than a list of children.
  (build_libsvn_printers): Add the new pretty-printers.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1365035 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion