Add an iterator() alias to iterator

src/main/scala-2.12/collection/compat/package.scala

@@ -41,6 +41,10 @@ package object compat {
     def fromSpecific(source: TraversableOnce[Int]): C = fact.apply(source.toSeq: _*)
   }
 
+  implicit class WithParens[A](private val as: IterableLike[A, _]) extends AnyVal {
+    def iterator(): Iterator[A] = as.iterator
+  }
+
   // This really belongs into scala.collection but there's already a package object in scala-library so we can't add to it
   type IterableOnce[+X] = TraversableOnce[X]
 }

src/test/scala/collection/IterableLikeTest.scala

@@ -0,0 +1,14 @@
+package collection
+
+import org.junit.Test
+
+import scala.collection.compat._
+
+class IterableLikeTest {
+
+  @Test
+  def iteratorTest(): Unit = {
+    List(1, 2, 3).iterator()
+  }
+
+}