JS backend: made some exceptions more JS idiomatic -- translate Exception to Error, IndexOutOfBounds and IndexOutOfBoundsException to RangeError.

js/js.libraries/src/core/javalang.kt

@@ -3,8 +3,8 @@ package java.lang
 import java.io.IOException
 import js.library
 
-library
-open public class Exception(message: String? = null) : Throwable() {}
+native("Error")
+open public class Exception(message: String? = null): Throwable() {}
 
 library
 open public class RuntimeException(message: String? = null) : Exception(message) {}
@@ -15,8 +15,11 @@ public class IllegalArgumentException(message: String? = null) : Exception() {}
 library
 public class IllegalStateException(message: String? = null) : Exception() {}
 
-library
-public class IndexOutOfBoundsException(message: String? = null) : Exception() {}
+native("RangeError")
+public class IndexOutOfBounds(message: String? = null) : Exception(message) {}
+
+native("RangeError")
+public class IndexOutOfBoundsException(message: String? = null) : Exception(message) {}
 
 library
 public class UnsupportedOperationException(message: String? = null) : Exception() {}

js/js.translator/testFiles/kotlin_lib.js

@@ -72,16 +72,13 @@ String.prototype.contains = function (s) {
 
     Kotlin.modules = {};
 
-    Kotlin.Exception = Kotlin.$createClass();
-    Kotlin.RuntimeException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.IndexOutOfBounds = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.NullPointerException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.NoSuchElementException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.IllegalArgumentException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.IllegalStateException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.IndexOutOfBoundsException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.UnsupportedOperationException = Kotlin.$createClass(Kotlin.Exception);
-    Kotlin.IOException = Kotlin.$createClass(Kotlin.Exception);
+    Kotlin.RuntimeException = Kotlin.$createClass();
+    Kotlin.NullPointerException = Kotlin.$createClass();
+    Kotlin.NoSuchElementException = Kotlin.$createClass();
+    Kotlin.IllegalArgumentException = Kotlin.$createClass();
+    Kotlin.IllegalStateException = Kotlin.$createClass();
+    Kotlin.UnsupportedOperationException = Kotlin.$createClass();
+    Kotlin.IOException = Kotlin.$createClass();
 
     Kotlin.throwNPE = function () {
         throw Kotlin.$new(Kotlin.NullPointerException)();
@@ -263,7 +260,7 @@ String.prototype.contains = function (s) {
         },
         checkRange: function(index) {
             if (index < 0 || index >= this.$size) {
-                throw new Kotlin.IndexOutOfBoundsException();
+                throw new RangeError();
             }
         }
     });