* tree-ssa-live.c (tpa_init, tpa_delete, tpa_compact,
	root_var_init, type_var_init): Use VEC instead of VARRAY.
	* tree-ssa-live.h (tree_partition_associator_d): Change the
	type of trees to VEC(tree,heap)*.
	(tpa_tree): Use VEC instead of VARRAY.

From-SVN: r99695