* print-tree.c (debug_vec_tree): New fn.
	(print_vec_tree): New fn.
	* tree.h: Declare them.
	* gdbinit.in (ptv): New command.

	* print-tree.c (print_node) [TREE_VEC]: Print elements normally.

	* gdbinit.in (pdd): New command.

From-SVN: r159941