[R6RS] symbol-hash

[dyb at cs.indiana.edu]

I'm guessing that symbol-hash is intended to be used to build hash
functions for aggregate objects that may contain symbols, and that the
rationale for providing it is that an implementation may already cache
some sort of hash value for symbols.  Right?  Should we say this
explicitly in the document and also that eq hash tables suffice when only
symbols are involved?

Kent