alias.c: Invlude varray.h

alias.c: Invlude varray.h

	* alias.c:  Invlude varray.h
	(alias_sets): Turn into varray.
	(get_alias_set_entry): Use VARRAY; mark inline.
	(mems_in_disjoint_alias_sets_p): Mark inline.
	(record_alias_subset): Use varray.
	(init_alias_once): Initialize varray.
	(new_alias_set): Grow array.
	* varray.c: Make VARRAY_GENERIC_PTR non GTYized.

From-SVN: r75711