KT-151 Inherit visibility when overriding

#KT-151 Fixed

Visibilities.INHERITED constant added (occurs only during resolve), changed after overridden descriptors resolve
Fake descriptors are created for invisible properties as well (is necessary for better error reporting)

idea/testData/quickfix/modifiers/beforeVisibilityModifer2.kt

@@ -4,5 +4,5 @@ open class A {
 }
 
 class B : A() {
-    <caret>override fun run() {}
+    <caret>internal override fun run() {}
 }