CLJS-3477: add missing ns specs for :refer-global and :require-global (#315)

* add :refer-global, and :require-global to specs
* just add an eval comment, bringing these into analyzer tests is a project for later

Author: swannodette

src/main/cljs/cljs/core/specs/alpha.cljc

@@ -188,14 +188,24 @@
                  :libs (s/+ (s/alt :libspec ::use-macros-libspec
                                    :flag #{:reload :reload-all :verbose})))))
 
+(s/def ::ns-refer-global
+  (s/spec (s/cat :clause #{:refer-global}
+                 :options (s/keys* :req-un [::only]))))
+
+(s/def ::ns-require-global
+  (s/spec (s/cat :clause #{:require-global}
+                 :body (s/+ ::libspec))))
 
 (s/def ::ns-clauses
-  (s/* (s/alt :refer-clojure ::ns-refer-clojure
-              :require ::ns-require
-              :require-macros ::ns-require-macros
-              :import ::ns-import
-              :use ::ns-use
-              :use-macros ::ns-use-macros)))
+  (s/* (s/alt
+         :refer-clojure ::ns-refer-clojure
+         :require ::ns-require
+         :require-macros ::ns-require-macros
+         :import ::ns-import
+         :use ::ns-use
+         :use-macros ::ns-use-macros
+         :refer-global ::ns-refer-global
+         :require-global ::ns-require-global)))
 
 (s/def ::ns-form
   (s/cat :ns-name simple-symbol?
@@ -233,3 +243,16 @@
 (s/fdef core/use-macros
   :args (s/+ (s/alt :libspec (quoted ::use-macros-libspec)
                     :flag #{:reload :reload-all :verbose})))
+
+(comment
+
+  (s/valid? ::ns-refer-global
+    '(:refer-global :only [Date] :rename {Date MyDate}))
+
+  (s/valid? ::ns-refer-global
+    '(:refer-global :only))
+  
+  (s/valid? ::ns-require-global
+    '(:require-global [jquery :as jq :refer [carousel] :rename {carousel car}]))
+
+)