JS: fix translation of !! operation

js/js.translator/testData/box/expression/misc/exclExclThrows.kt

@@ -7,7 +7,7 @@ fun box(): String {
     try {
         if ((a!! + 3) == 3) return "fail1"
     }
-    catch (e: Throwable) {
+    catch (e: NullPointerException) {
         return "OK"
     }
     return "fail2"

js/js.translator/testData/kotlin_lib.js

@@ -205,7 +205,7 @@
     Kotlin.Throwable = Error;
 
     Kotlin.throwNPE = function (message) {
-        throw new Kotlin.kotlin.ranges.NullPointerException(message);
+        throw new Kotlin.kotlin.NullPointerException(message);
     };
 
     Kotlin.throwCCE = function () {