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/inference/capturedTypes/memberScopeOfCaptured.kt

@@ -7,5 +7,6 @@ class A<T> {
 fun <E> A<E>.bar(): A<in E> = this
 
 fun baz(x: A<out CharSequence>) {
+    x.bar() checkType { _<A<*>>() }
     x.bar().foo() checkType { _<Any?>() } // See KT-10448
 }