c-family/
	* c-pretty-print.h (c_pretty_printer::unary_expression): Now a
	virtual member function.
	(c_pretty_printer::multiplicative_expression): Likewise.
	(c_pretty_printer::conditional_expression): Likewise.
	(c_pretty_printer::assignment_expression): Likewise.
	(c_pretty_printer::expression): Likewise.
	(pp_unary_expression): Adjust.
	(pp_multiplicative_expression): Likewise.
	(pp_assignment_expression): Likewise.
	(pp_conditional_expression): Likewise.
	(pp_expression): Likewise.
	* c-pretty-print.c (c_pretty_printer::unary_expression): Rename
	from pp_c_unary_expression.  Adjust.
	(c_pretty_printer::multiplicative_expression): Rename from
	pp_c_multiplicative_expression.  Adjust.
	(c_pretty_printer::conditional_expression): Rename from
	pp_c_conditional_expression.  Adjust.
	(c_pretty_printer::assignment_expression): Rename from
	pp_c_assignment_expression.  Adjust.
	(c_pretty_printer::expression): Rename from pp_c_expression.  Adjust.
	(c_pretty_printer::c_pretty_printer): Do not assign to
	unary_expression, multiplicative_expression,
	conditional_expression, expression.

cp/
	* cxx-pretty-print.h (cxx_pretty_printer::unary_expression):
	Declare as overrider.
	(cxx_pretty_printer::multiplicative_expression): Likewise.
	(cxx_pretty_printer::conditional_expression): Likewise.
	(cxx_pretty_printer::assignment_expression): Likewise.
	(cxx_pretty_printer::expression): Likewise.
	* cxx-pretty-print.c (cxx_pretty_printer::unary_expression):
	Rename from pp_cxx_unary_expression.  Adjust.
	(cxx_pretty_printer::multiplicative_expression): Rename from
	pp_cxx_multiplicative_expression.  Adjust.
	(cxx_pretty_printer::conditional_expression): Rename from
	pp_cxx_conditional_expression.  Adjust.
	(cxx_pretty_printer::assignment_expression): Rename from
	pp_cxx_assignment_expression.  Adjust.
	(cxx_pretty_printer::expression): Rename from pp_cxx_expression.
	Adjust.
	(cxx_pretty_printer::cxx_pretty_printer): Dot not assign to
	unary_expression, multiplicative_expression,
	conditional_expression, assignment_expression, expression.

From-SVN: r201987