make terminal-val return a direct-nav, add another benchmark case

scripts/benchmarks.clj

@@ -69,6 +69,7 @@
     (compiled-select-any p data)
     (specter-dynamic-nested-get data :a :b :c)
     (get-in data [:a :b :c])
+    (-> data (get :a) (get :b) (get :c))
     (-> data :a :b :c)
     (select-any [(keypath :a) (keypath :b) (keypath :c)] data)))
 

src/clj/com/rpl/specter.cljc

@@ -194,7 +194,7 @@
       (i/terminal* afn vals structure))))
 
 
-(defn terminal-val
+(defn ^:direct-nav terminal-val
   "Like `terminal` but specifies a val to set at the location regardless of
    the collected values or the value at the location."
   [v]

src/clj/com/rpl/specter/impl.cljc

@@ -672,12 +672,11 @@
         o))
 
 
-
-(declare resolve-magic-code)
-
 (defn all-static? [params]
   (every? (complement dynamic-param?) params))
 
+(declare resolve-magic-code)
+
 (defn resolve-dynamic-fn-arg [o]
   (cond (instance? DynamicFunction o)
         (let [op (resolve-dynamic-fn-arg (:op o))