Refine member scope for types with projections

Instead of erasing descriptors with conflicting substitution,
use invariant CapturedType(<projection>) as replacement for type parameter
within default member scope.

After substitution leave such types 'as is' everywhere except return types,
use common approximation for them.

 #KT-9294 In Progress
 #KT-5411 Fixed
 #KT-8647 Fixed

 #KT-9462 Fixed
 #KT-9893 Fixed
 #KT-7581 Fixed
 #KT-7296 In Progress

compiler/testData/diagnostics/tests/generics/projectionsScope/superClass.kt

@@ -0,0 +1,12 @@
+// !CHECK_TYPE
+
+interface Clazz<T> {
+    val t: T
+    fun getSuperClass(): Clazz<in T>
+}
+
+fun test(clazz: Clazz<*>) {
+    clazz.t checkType { _<Any?>() }
+    clazz.getSuperClass() checkType { _<Clazz<*>>() }
+    clazz.getSuperClass().t checkType { _<Any?>() }
+}