use kotlin Iterable/Iterator

instead of java Iterable/Iterator
in Kotlin code in tests

compiler/testData/codegen/controlStructures/forUserType.jet

@@ -16,7 +16,7 @@ fun box() : String {
     }
     if(sum != 15) return "c5 failed"
 
-    val c1: java.lang.Iterable<Int> = MyCollection1()
+    val c1: Iterable<Int> = MyCollection1()
     sum = 0
     for (el in c1) {
         sum = sum + el!!
@@ -77,15 +77,14 @@ fun box() : String {
     return "OK"
 }
 
-class MyCollection1(): java.lang.Iterable<Int> {
-    override fun iterator(): java.util.Iterator<Int> = MyIterator()
+class MyCollection1(): Iterable<Int> {
+    override fun iterator(): Iterator<Int> = MyIterator()
 
-    class MyIterator(): java.util.Iterator<Int> {
+    class MyIterator(): Iterator<Int> {
         var k : Int = 5
 
         override fun next() : Int = k--
         override fun hasNext() = k > 0
-        override fun remove() {}
     }
 }
 
@@ -96,8 +95,7 @@ class MyCollection2(): Iterable<Int> {
         var k : Int = 5
 
         override fun next() : Int = k--
-        override val hasNext : Boolean
-          get() = k > 0
+        override fun hasNext() : Boolean = k > 0
     }
 }
 
@@ -108,8 +106,7 @@ class MyCollection3() {
         var k : Int = 5
 
         fun next() : Int? = k--
-        val hasNext : Boolean
-            get() = k > 0
+        fun hasNext() : Boolean = k > 0
     }
 }
 

compiler/testData/codegen/regressions/kt528.kt

@@ -2,8 +2,6 @@ package mask
 
 import java.io.*
 import java.util.*
-import java.util.Iterator as It
-import java.lang.Iterable as Itl
 
 fun box() : String {
     val input = StringReader("/Users/abreslav/work/jet/docs/luhnybin/src/test")

compiler/testData/codegen/regressions/kt529.kt

@@ -88,7 +88,7 @@ class Luhny() {
 
 // fun Char.isDigit() = Character.isDigit(this)
 
-fun java.lang.Iterable<Int>.sum(f : (index : Int, value : Int) -> Int) : Int {
+fun Iterable<Int>.sum(f : (index : Int, value : Int) -> Int) : Int {
     var sum = 0
     var i = 0
     for (d in this) {

compiler/testData/codegen/regressions/kt715.kt

@@ -6,6 +6,6 @@ val test2 = javaClass<Iterator<Int>> ()
 
 fun box(): String {
     if(test.getCanonicalName() != "java.lang.String") return "fail"
-    if(test2.getCanonicalName() != "jet.Iterator") return "fail"
+    if(test2.getCanonicalName() != "java.util.Iterator") return "fail"
     return "OK"
 }

compiler/testData/codegen/traits/stdlib.jet

@@ -2,8 +2,8 @@ trait ISized {
     val size : Int
 }
 
-trait javaUtilIterator<T> : java.util.Iterator<T> {
-    override fun remove() : Unit {
+trait javaUtilIterator<T> : Iterator<T> {
+    fun remove() : Unit {
         throw UnsupportedOperationException()
     }
 }
@@ -16,14 +16,14 @@ class MyIterator<T>(val array : ReadOnlyArray<T>) : javaUtilIterator<T> {
     override fun next() : T = array.get(index++)
 }
 
-trait ReadOnlyArray<out T> : ISized, java.lang.Iterable<T> {
+trait ReadOnlyArray<out T> : ISized, Iterable<T> {
   fun get(index : Int) : T
 
   class Default {
     fun check(v: Any) =  v is T
   }
 
-  override fun iterator() : java.util.Iterator<T> = MyIterator<T>(this)
+  override fun iterator() : Iterator<T> = MyIterator<T>(this)
 }
 
 trait WriteOnlyArray<in T> : ISized {