* go-gcc.cc (Gcc_backend::compound_statement): New function.
	(Gcc_backend::assignment_statement): Use error_statement.
	(Gcc_backend::return_statement): Likewise.
	(Gcc_backend::if_statement): Likewise.
	(Gcc_backend::switch_statement): Likewise.
	(Gcc_backend::statement_list): Likewise.

From-SVN: r172521