defn drops an optional leading docstring/attr-map then emits (def name (fn* ...)).
Single- and multi-arity both reduce to (fn* ~@body) so no arity branching is needed.
map? is true for symbol forms in Jolt, so the attr-map strip is guarded with symbol?.
defn- delegates to defn (privacy isn't enforced, as in Clojure's own defn-). Placed
before fresh-sym, which is itself a defn- now.
All five fundamental macros (fn/let/loop/defn/defn-) are now in the overlay.
conformance 228x3, fixpoint, clojure-test-suite 3930, full suite green.
08c796c145