.gdbinit: nd_tree

* .gdbinit (nd_tree): dump node tree by dump_node().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47892 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-10-13

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47893 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: should not eliminate value nodes

* parse.y (remove_duplicate_keys): should not simply eliminate all
  value nodes, which may have side effects.
  [ruby-core:65625] [Bug #10315]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e