CLJ-2048 add StackTraceElement to throw-if into-array to avoid classcastexception on [Object array when stack trace is nil

Signed-off-by: Stuart Halloway <stu@cognitect.com>

Author: gerritjvv

src/clj/clojure/core.clj

@@ -5763,7 +5763,7 @@
           exception (Exception. message)
           raw-trace (.getStackTrace exception)
           boring? #(not= (.getMethodName ^StackTraceElement %) "doInvoke")
-          trace (into-array (drop 2 (drop-while boring? raw-trace)))]
+          trace (into-array StackTraceElement (drop 2 (drop-while boring? raw-trace)))]
       (.setStackTrace exception trace)
       (throw (clojure.lang.Compiler$CompilerException.
               *file*
@@ -7718,4 +7718,4 @@
 (defn uri?
   "Return true if x is a java.net.URI"
   {:added "1.9"}
-  [x] (instance? java.net.URI x))
+  [x] (instance? java.net.URI x))