Adjust js collections to size transformation

js/js.translator/testData/java/abstractList/cases/iterator.kt

@@ -4,7 +4,7 @@ import java.util.AbstractList
 
 class MyList<T>(vararg val data: T) : AbstractList<T>() {
     override fun get(index: Int) = data[index]
-    override fun size() = data.size()
+    override val size: Int get() = data.size()
 }
 
 fun test<T>(expected: String, list: List<T>) {

js/js.translator/testData/java/arrayList/cases/retainAll.kt

@@ -3,7 +3,7 @@ package foo
 import java.util.ArrayList;
 
 fun test<T>(a: List<T>, b: List<T>, removed: Boolean, expected: List<T>): String? {
-    val t = ArrayList<T>(a.size())
+    val t = ArrayList<T>(a.size)
     t.addAll(a)
 
     if (t.retainAll(b) != removed) return "$a.retainAll($b) != $removed, result list: $t"