Allow calling kwapply with mixed names and dicts

hy/core/macros.hy

@@ -122,10 +122,15 @@
   "Use a dictionary as keyword arguments"
   (let [[-fun (car call)]
         [-args (cdr call)]
-        [-okwargs kwargs]]
+        [-okwargs `[(list (.items ~kwargs))]]]
     (while (= -fun "kwapply") ;; join any further kw
-      (setv -okwargs (+ (car (cdr -args)) -okwargs))
+      (if (not (= (len -args) 2))
+        (macro-error
+         call
+         (.format "Trying to call nested kwapply with {0} args instead of 2"
+                  (len -args))))
+      (.insert -okwargs 0 `(list (.items ~(car (cdr -args)))))
       (setv -fun (car (car -args)))
       (setv -args (cdr (car -args))))
 
-    `(apply ~-fun [~@-args] ~-okwargs)))
+    `(apply ~-fun [~@-args] (dict (sum ~-okwargs [])))))

tests/native_tests/language.hy

@@ -154,13 +154,15 @@
   (assert (= (kwapply (kwtest) mydict) mydict))
   (assert (= (kwapply (kwtest) ((fn [] {"one" "two"}))) {"one" "two"}))
   (assert (= (kwapply
+              (kwapply
                (kwapply
                 (kwapply
                  (kwapply (kwtest) {"x" 4})
+                 mydict)
                 {"x" 8})
                {"x" (- 3 2) "y" 2})
               {"y" 5 "z" 3})
-             {"x" 1 "y" 5 "z" 3})))
+             {"x" 1 "y" 5 "z" 3 "one" "three"})))
 
 (defn test-apply []
   "NATIVE: test working with args and functions"