Prohibit local objects and enum classes

#KT-5402 Fixed
  #KT-4838 Fixed

Resolve type of object inside local object as special, not supertype('Any').
Changed visibility of constructor of anonymous object to 'internal' to be able to resolve the following:
fun box(): String {
    var foo = object {
        val bar = object {
            val baz = "ok"
        }
    }
    return foo.bar.baz
}
The containing declaration of property initializers is constructor, so 'baz' was invisible inside private constructor.

compiler/testData/codegen/boxWithStdlib/callableReference/function/local/enumExtendsTrait.kt

@@ -1,11 +1,11 @@
-fun box(): String {
-    trait Named {
-        fun name(): String
-    }
-    
-    enum class E : Named {
-        OK
-    }
+trait Named {
+    fun name(): String
+}
 
+enum class E : Named {
+    OK
+}
+
+fun box(): String {
     return E.OK.(Named::name)()
 }