Allow resolve class declarations in class objects

Use INACCESSIBLE_OUTER_CLASS_EXPRESSION error for marking already resolved elements

 #KT-3261 Fixed

compiler/testData/lazyResolve/namespaceComparator/resolveFunctionInsideClassObject.kt

@@ -0,0 +1,9 @@
+package test
+
+class Test {
+  fun test(): Int = 12
+
+  class object {
+    val a = test() // Check if resolver will be able to infer type of a variable
+  }
+}