K2: Fix generic inference case with !! synthetic call

Result of the `checkNotNull` calls should always be a non-nullable
values.
The simplest idea how to acheive it is adding not-nullable Any bound
to the type parameter declaration.

Existing comment stating about impossibility of such bound seems to be
not 100% correct because it doesn't take into account presence of
definitely-non-nullable X & Any types that allow described case with
nullable generic.

^KT-55804 Fixed

compiler/testData/diagnostics/tests/inference/regressions/kt36342.fir.kt

@@ -4,8 +4,8 @@ import java.lang.Exception
 fun <K> id(arg: K): K = arg
 
 fun test() {
-    <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>id(<!UNRESOLVED_REFERENCE!>unresolved<!>)!!<!>
-    <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!><!UNRESOLVED_REFERENCE!>unresolved<!>!!!!<!>
+    id(<!UNRESOLVED_REFERENCE!>unresolved<!>)!!
+    <!UNRESOLVED_REFERENCE!>unresolved<!>!!<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>
     <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>try {
         id(<!UNRESOLVED_REFERENCE!>unresolved<!>)
     } catch (e: Exception) {