* targets.c: Add copy_private_symbol_data and link_split_section

	* targets.c: Add copy_private_symbol_data and link_split_section
	to the target vector.
	* libbfd-in.h (_bfd_generic_bfd_copy_private_symbol_data): Define.
	(_bfd_nolink_bfd_link_split_section): Likewise.
	(bfd_generic_link_split_section): Declare.
	* syms.c (bfd_copy_private_symbol_data): Define.
	* linker.c (bf_link_split_section): Likewise.
	* som.c (som_bfd_copy_private_symbol_data): New function
	(som_bfd_link_split_section): Likewise.
	* All other targets updated with default versions of new routines.

	* Take out my braindamaged bfd_true/bfd_false changes from earlier
	today.  Replace with just:
	* bfd-in.h: (TRUE_FALSE_ALREADY_DEFINED): Define this if
	compiling with g++-2.6 or later.
	* bfd-in2.h: Rebuilt.