We should not set the unnamed DIE's name to "__anon__" since that will

bring back a known issue with DTrace regarding type name
comparison. Instead, we can set the name to an empty string.

Pointed out by:	     avg

cddl/contrib/opensolaris/tools/ctf/cvt/dwarf.c

@@ -432,7 +432,7 @@ die_name(dwarf_t *dw, Dwarf_Die die)
 
 	(void) die_string(dw, die, DW_AT_name, &str, 0);
 	if (str == NULL)
-		str = xstrdup("__anon__");
+		str = xstrdup("");
 
 	return (str);
 }