"Convert object literal to class" should create inner class if necessary #KT-20091 Fixed

idea/testData/intentions/convertObjectLiteralToClass/inFunction.kt

@@ -0,0 +1,11 @@
+class Test {
+    var field = 1
+
+    fun foo() { // TARGET_BLOCK:
+        <caret>object : Runnable {
+            override fun run() {
+                field = 2
+            }
+        }
+    }
+}