Refine type from property setter parameter on assignment

In most cases these types are equals, the only known exception is
var-property contained in projected type member scope (see test data)

compiler/testData/diagnostics/tests/generics/varProjection/setterNotProjectedOutAssign.kt

@@ -4,6 +4,6 @@ interface Tr<T> {
 }
 
 fun test(t: Tr<*>) {
-    t.v = t
+    t.v = <!TYPE_MISMATCH!>t<!>
     t.v checkType { _<Tr<*>>() }
 }