Partial body resolve works for local Nothing functions + does not go inside local functions and classes

idea/testData/resolve/partialBodyResolve/LocalClass.kt

@@ -0,0 +1,11 @@
+fun foo(p: String?) {
+    class LocalClass {
+        fun f(): String? {
+            if (p == null) return null
+            print(p.size)
+            return ""
+        }
+    }
+
+    <caret>p?.size
+}