functions to avoid duplication. Revise notes on hashx functions and
on vector implementation. In make-hash-table, size is now optional.
Add hash-map and hash-for-each.
* doc/ref/scheme-compound.texi: Clarified that vectors need to
be quoted.
* doc/tutorial/guile-tut.texi: Fix example, where a vector
constant is used without quoting.
* ice-9/boot-9.scm (make-autoload-interface): Added missing
quote around vector constant.
* test-suite/tests/elisp.test: Added missing quote around vector
constants.