add generated tests

compiler/testData/codegen/android/multiFile/1.kt

@@ -0,0 +1,37 @@
+package com.myapp
+
+import android.app.Activity
+import android.view.View
+import android.widget.*
+
+class R {
+    class id {
+        class object {
+            val item_detail_container = 0
+            val textView1 = 1
+            val password = 2
+            val textView2 = 3
+            val passwordConfirmation = 4
+            val login = 5
+        }
+    }
+}
+
+class MyActivity(): Activity() {
+    val textViewWidget = TextView(this)
+    val editTextWidget = EditText(this)
+    val buttonWidget = Button(this)
+
+    override fun findViewById(id: Int): View? {
+        return when (id) {
+            R.id.textView1 -> textViewWidget
+            R.id.password -> editTextWidget
+            R.id.login -> buttonWidget
+            else -> null
+        }
+    }
+}
+
+fun box(): String {
+    return "OK"
+}