Autoimport items from kotlinx.android.synthetic on completion

plugins/android-idea-plugin/testData/android/completion/withoutImport/res/layout/layout.xml

@@ -0,0 +1,10 @@
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent" >
+
+    <Button
+        android:id="@+id/login"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+</FrameLayout>

plugins/android-idea-plugin/testData/android/completion/withoutImport/withoutImport.kt

@@ -0,0 +1,9 @@
+package com.myapp
+
+import android.app.Activity
+
+class MyActivity: Activity() {
+    val button = this.login<caret>
+}
+
+// EXIST: login