[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/inner/localClass.fir.kt

@@ -0,0 +1,18 @@
+class Outer {
+    fun foo(): Int {
+        if (outerState > 0) return outerState
+        
+        class Local {
+            val localState = <!UNRESOLVED_REFERENCE!>outerState<!>
+            
+            inner class LocalInner {
+                val o = <!UNRESOLVED_REFERENCE!>outerState<!>
+                val l = localState
+            }
+        }
+        
+        return Local().localState
+    }
+    
+    val outerState = 42
+}