Disallow extension properties with backing fields

#KT-1682 Fixed

js/js.libraries/src/core/string.kt

@@ -36,7 +36,7 @@ native public fun String.match(regex : String) : Array<String> = js.noImpl
 native public fun String.trim() : String = js.noImpl
 
 native("length")
-public val CharSequence.size: Int = js.noImpl
+public val CharSequence.size: Int get() = js.noImpl
 
 library
 public fun CharSequence.length(): Int = js.noImpl

js/js.libraries/src/stdlib/domCode.kt

@@ -7,7 +7,7 @@ public fun createDocument(): Document {
     return js.dom.html.document.implementation.createDocument(null, null, null)
 }
 
-native public val Node.outerHTML: String = js.noImpl
+native public val Node.outerHTML: String get() = js.noImpl
 
 /** Converts the node to an XML String */
 public fun Node.toXmlString(): String = this.outerHTML

js/js.translator/testData/expression/misc/cases/elvisWithThrow.kt

@@ -11,7 +11,7 @@ fun bar(): Any? {
 }
 
 native
-val Exception.message: String = noImpl
+val Exception.message: String get() = noImpl
 
 fun box(): String {
     val a: String? = null

js/js.translator/testData/extensionProperty/cases/propertyWithGetterAndSetter.kt

@@ -10,7 +10,7 @@ var Test.b: Int
         a = c - 1
     }
 
-val Test.d: Int = 44
+val Test.d: Int get() = 44
 
 fun box(): Boolean {
     val c = Test()

js/js.translator/testData/nameClashes/cases/overloadExtension.kt

@@ -5,8 +5,8 @@ fun Int.foo() {
 fun String.foo() {
 }
 
-val Int.bar = 1
-val String.bar = 2
+val Int.bar: Int get() = 1
+val String.bar: Int get() = 2
 
 fun box(): String {
     val a = 43

js/js.translator/testData/native/cases/nativePropertyWithCustomName.kt

@@ -9,8 +9,8 @@ native("\"O\"") val foo: String = noImpl
 native("boo") val bar: String = noImpl
 
 class A
-native("__proto__") val Any.proto: String = noImpl
-native("__proto__") val A.proto: String = noImpl
+native("__proto__") val Any.proto: String get() = noImpl
+native("__proto__") val A.proto: String get() = noImpl
 
 fun actual(foo: String, native("boo") bar: String) = foo + bar
 fun expected(foo: String, boo: String) = foo + boo

js/js.translator/testData/propertyAccess/cases/nativePropertiesNameClashes.kt

@@ -5,8 +5,8 @@ val PACKAGE = "Kotlin.modules.JS_TESTS.foo"
 native fun eval(e: String): Any? = noImpl
 
 class A
-native val Any.__proto__: String = noImpl
-native val A.__proto__: String = noImpl
+native val Any.__proto__: String get() = noImpl
+native val A.__proto__: String get() = noImpl
 
 fun box(): String {
     val a = A()

js/js.translator/testData/propertyOverride/cases/overrideExtensionProperty.kt

@@ -3,9 +3,9 @@ package foo
 class T
 
 open class A {
-    open val T.foo: Int = 34
+    open val T.foo: Int
         get() {
-            return $foo
+            return 34
         }
     fun test(): Int {
         return T().foo
@@ -13,7 +13,7 @@ open class A {
 }
 
 class B : A() {
-    override val T.foo: Int = 5
+    override val T.foo: Int get() = 5
 }
 
 

js/js.translator/testData/regression/cases/kt2470.kt

@@ -2,7 +2,7 @@
 
 package foo
 
-native val Exception.message: String = noImpl
+native val Exception.message: String get() = noImpl
 
 public fun <T : Throwable> failsWith(block: () -> Any): T {
     try {