CLJS-2256: Generated code doesn't add newline after sourceMappingURL comment

Author: anmonteiro

src/main/clojure/cljs/closure.clj

@@ -1864,9 +1864,9 @@
 
 (defn add-source-map-link [{:keys [source-map output-to] :as opts} js]
   (if source-map
-      (if (= output-to :print)
-        (str js "\n//# sourceMappingURL=" source-map)
-        (str js "\n//# sourceMappingURL=" (path-relative-to (io/file output-to) {:url source-map})))
+    (if (= output-to :print)
+      (str js "\n//# sourceMappingURL=" source-map "\n\n")
+      (str js "\n//# sourceMappingURL=" (path-relative-to (io/file output-to) {:url source-map}) "\n\n"))
     js))
 
 (defn absolute-path? [path]

src/main/clojure/cljs/compiler.cljc

@@ -1279,7 +1279,7 @@
    (defn emit-source-map [src dest sm-data opts]
      (let [sm-file (io/file (str (.getPath ^File dest) ".map"))]
        (if-let [smap (:source-map-asset-path opts)]
-         (emits "\n//# sourceMappingURL=" smap
+         (emitln "\n//# sourceMappingURL=" smap
            (string/replace (util/path sm-file)
              (str (util/path (io/file (:output-dir opts))))
              "")
@@ -1288,7 +1288,7 @@
                (if-not (string/index-of smap "?") "?" "&")
                "rel=" (System/currentTimeMillis))
              ""))
-         (emits "\n//# sourceMappingURL="
+         (emitln "\n//# sourceMappingURL="
            (or (:source-map-url opts) (.getName sm-file))
            (if (true? (:source-map-timestamp opts))
              (str "?rel=" (System/currentTimeMillis))