cp:
	Kill remnants of this is variable.
	* cp-tree.h (flag_this_is_variable): Remove.
	* decl2.c (flag_this_is_variable): Remove.
	* class.c (fixed_type_or_null): Add cdtor parm. Adjust.
	(build_vbase_path): The path is non-static, even in a cdtor.
	(resolves_to_fixed_type_p): Add additional return value.
	* search.c (init_vbase_pointers): Adjust.
	* tree.c (lvalue_p_1): Adjust.
	* typeck.c (mark_addressable): Adjust.

From-SVN: r39676