K2: Fix false-negative RETURN_TYPE_MISMATCH

^KT-53987 Fixed
^KT-55932 Fixed

compiler/testData/diagnostics/testsWithStdLib/elvisOnJavaList.fir.kt

@@ -14,5 +14,5 @@ public class P {
 
 fun foo(c: P): MutableList<Int> {
     // Error should be here: see KT-8168 Typechecker fails for platform collection type
-    return c.getList() ?: <!TYPE_MISMATCH!>listOf()<!>
+    return <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>c.getList() ?: <!TYPE_MISMATCH!>listOf()<!><!>
 }