Create class descriptors for local classes in illegal positions

Typecheck code in illegal selector position
Fixes exceptions on "val p = A.class" erroneous code

idea/testData/checker/regression/FunDeclarationAfterDot.kt

@@ -0,0 +1,7 @@
+class A
+
+fun f() {
+    A.<error>fun <error>g</error>() {
+        <error descr="[UNRESOLVED_REFERENCE] Unresolved reference: g">g</error>()
+    }</error>
+}