* tree-dfa.c (referenced_vars, add_referenced_var): Use VEC
	instead of VARRAY.
	* tree-flow.h (num_referenced_var, referenced_var): Likewise.
	* tree-into-ssa.c (mark_def_site_blocks): Likewise.
	* tree-ssa.c (init_tree_ssa, delete_tree_ssa): Likewise.
	* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.

From-SVN: r99393