FIR: Make resolution logic for local classes the same as for top-level

Run different phases through common transformers sequentially
It should make code more reusable and may help with avoid common bugs

compiler/testData/diagnostics/tests/dataFlow/local/NestedLocalClass.fir.kt

@@ -4,7 +4,7 @@ fun test(x: Any) {
   class LocalOuter {
     inner class Local {
       init {
-        x.<!UNRESOLVED_REFERENCE!>length<!>
+        x.length
       }
     }
   }