[FIR] Add incoming edges to local class's property initializers

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

@@ -11,7 +11,7 @@ fun test(del: Any?) {
   if (del !is Del) return
 
   class Local {
-    val delegatedVal by <!INAPPLICABLE_CANDIDATE!>df<!>(del)
-    val delegatedVal1: Int by <!INAPPLICABLE_CANDIDATE!>df<!>(del)
+    val delegatedVal by df(del)
+    val delegatedVal1: Int by df(del)
   }
 }

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

@@ -2,10 +2,10 @@ fun test(x: Any?) {
   if (x !is String) return
 
   class C {
-    val v = x.<!UNRESOLVED_REFERENCE!>length<!>
+    val v = x.length
 
     val vGet: Int
-      get() = x.<!UNRESOLVED_REFERENCE!>length<!>
+      get() = x.length
 
     val s: String = x
   }