Another fix for the Borland hash array code, and get rid of my attempt at working around Borland problems with infinity and NaN in the hash float functions. It seems impossible to do anything with them.

[SVN r28286]

libs/functional

@@ -1 +1 @@
-Subproject commit 1db2d3a822a59cbbab1307818d97041d6b27e303
+Subproject commit 685cd00a7b4aa9d4d13684fdf6b2cd8475559088