java Iterable/Iterator replaced to jet ones

in completion, js tests

idea/testData/completion/basic/ExtensionFromStandardLibrary.kt

@@ -9,6 +9,6 @@ fun firstFun() {
 
 // RUNTIME: 1
 // TIME: 1
-// EXIST: toLinkedList@toLinkedList()~for java.lang.Iterable<T> in kotlin
+// EXIST: toLinkedList@toLinkedList()~for jet.Iterable<T> in kotlin
 // EXIST: toLinkedList@toLinkedList()~for T? in kotlin.nullable
 // NUMBER: 2

idea/testData/completion/basic/extensions/JavaTypeExtension.kt

@@ -1,4 +1,4 @@
-fun <T> java.lang.Iterable<T>.first() : T? {
+fun <T> Iterable<T>.first() : T? {
     return this.iterator()?.next()
 }