Merged revisions 62080-62262 via svnmerge from

Merged revisions 62080-62262 via svnmerge from
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

........
  r62092 | collin.winter | 2008-04-01 18:27:10 +0200 (Di, 01 Apr 2008) | 1 line

  Add get_prev_sibling() to complement pytree's get_next_sibling().
........
  r62226 | collin.winter | 2008-04-08 21:07:56 +0200 (Di, 08 Apr 2008) | 1 line

  Add min() and max() to the list of special contexts that don't require adding list() calls around dict methods.
........
  r62232 | collin.winter | 2008-04-09 00:12:38 +0200 (Mi, 09 Apr 2008) | 4 lines

  Fix for http://bugs.python.org/issue2596

  This extends fix_xrange to know about the (mostly) same special contexts as fix_dict (where a special context is something that is guaranteed to fully consume the iterable), adding list() calls where appropriate. It also special-cases "x in range(y)".
........