class.c (current_lang_depth, [...]): Use VEC instead of VARRAY.

class.c (current_lang_depth, [...]): Use VEC instead of VARRAY.

	* class.c (current_lang_depth, push_lang_context,
	pop_lang_context): Use VEC instead of VARRAY.
	* cp-tree.h (saved_scope): Use VEC for lang_base instead of
	VARRAY.
	* name-lookup.c (push_to_top_level): Use VEC instead of
	VARRAY.

From-SVN: r99121