* gdb.texinfo (Set Breaks): Add index entry for setting

	* gdb.texinfo (Set Breaks): Add index entry for setting
	breakpoints on overloaded C++ functions that are not members of
	any classes.  Add an example and an index entry for setting
	breakpoints on all program functions.
	(Character Sets, Macros, Overlay Commands)
	(Non-debug DLL symbols, GDB/MI Output Syntax)
	(Annotations Overview, Maintenance Commands, File-I/O Overview):
	Use "(@value{GDBP})" instead of a literal "(gdb)".