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.

core/descriptors/src/org/jetbrains/jet/lang/resolve/DescriptorUtils.java

@@ -289,9 +289,12 @@ public class DescriptorUtils {
     @NotNull
     public static Visibility getDefaultConstructorVisibility(@NotNull ClassDescriptor classDescriptor) {
         ClassKind classKind = classDescriptor.getKind();
-        if (classKind == ClassKind.ENUM_CLASS || classKind.isSingleton() || isAnonymousObject(classDescriptor)) {
+        if (classKind == ClassKind.ENUM_CLASS || classKind.isSingleton()) {
             return Visibilities.PRIVATE;
         }
+        if (isAnonymousObject(classDescriptor)) {
+            return Visibilities.INTERNAL;
+        }
         assert classKind == ClassKind.CLASS || classKind == ClassKind.TRAIT || classKind == ClassKind.ANNOTATION_CLASS;
         return Visibilities.PUBLIC;
     }

core/descriptors/src/org/jetbrains/jet/lang/resolve/name/FqNamesUtil.kt

@@ -70,16 +70,16 @@ public fun ImportPath.isImported(alreadyImported: ImportPath): Boolean {
 
 public fun ImportPath.isImported(imports: Iterable<ImportPath>): Boolean = imports.any { isImported(it) }
 
+// Check that it is javaName(\.javaName)* or an empty string
+private enum class State {
+    BEGINNING
+    MIDDLE
+    AFTER_DOT
+}
+
 public fun isValidJavaFqName(qualifiedName: String?): Boolean {
     if (qualifiedName == null) return false
 
-    // Check that it is javaName(\.javaName)* or an empty string
-    enum class State {
-        BEGINNING
-        MIDDLE
-        AFTER_DOT
-    }
-
     var state = State.BEGINNING
 
     for (c in qualifiedName) {