PR c++/33842
	* cxx-pretty-print.h (pp_cxx_offsetof_expression): New prototype.
	* cxx-pretty-print.c (pp_cxx_primary_expression): Handle
	OFFSETOF_EXPR.
	(pp_cxx_offsetof_expression_1, pp_cxx_offsetof_expression): New
	functions.
	* error.c (dump_expr): Handle OFFSETOF_EXPR.

	* g++.dg/template/error34.C: New test.

From-SVN: r129677