KT-20 Resolve class objects' contents in the 'static' scope

compiler/testData/checkerWithErrorTypes/quick/ClassObjectCannotAccessClassFields.jet

@@ -0,0 +1,9 @@
+// http://youtrack.jetbrains.net/issue/KT-20
+
+class A() {
+    val x = 1
+
+    class object {
+        val y = <!UNRESOLVED_REFERENCE!>x<!>
+    }
+}