FIR checker: report SETTER_PROJECTED_OUT

compiler/testData/diagnostics/tests/generics/varProjection/setterProjectedOutAssign.fir.kt

@@ -1,13 +0,0 @@
-// !DIAGNOSTICS: -UNREACHABLE_CODE -UNUSED_PARAMETER
-// !CHECK_TYPE
-// t is unused due to KT-4233
-interface Tr<T> {
-    var v: T
-}
-
-fun test(t: Tr<*>) {
-    t.v = null!!
-    t.v = <!ASSIGNMENT_TYPE_MISMATCH!>""<!>
-    t.v = <!NULL_FOR_NONNULL_TYPE!>null<!>
-    t.v checkType { _<Any?>() }
-}