* i386.cc (Output_data_plt_i386::address_for_global,

	* i386.cc (Output_data_plt_i386::address_for_global,
	address_for_local): Add plt offset to returned value.  Adjust uses.
	* sparc.cc (Output_data_plt_sparc::address_for_global,
	address_for_local): Likewise.
	* tilegx.cc (Output_data_plt_tilegx::address_for_global,
	address_for_local): Likewise.
	* x86_64.cc (Output_data_plt_x86_64::address_for_global,
	address_for_local): Likewise.
	* target.h (Target::plt_address_for_global, plt_address_for_local):
	Update comment.
	* output.cc (Output_reloc::symbol_value): Don't add plt offset here.
	(Output_data_got::Got_entry::write): Nor here.
	* output.h: Comment fix.