* stabs.texinfo (String Field): Document type number pairs here,

	* stabs.texinfo (String Field): Document type number pairs here,
	instead of in the Sun specific section.
	(Include Files): The GNU linker supports the N_BINCL
	optimization.  Clarify the N_BINCL value, and what it is used
	for.
	(Procedures): Document N_FUN with an empty string to mark the end
	of a function.
	(Typedefs): Mention that Sun compilers may use N_GSYM for a type.
	(Sun Differences): Remove this node, as the information is now
	elsewhere in the main document.
	(Stab Section Basics): Mention that the GNU linker may optimize
	stabs and remove the leading N_UNDF symbol.