[Test] Disable UNUSED_* diagnostics in tests which are not belong to contolFlowAnalysis suite

compiler/testData/diagnostics/tests/callableReference/function/topLevelFromExtensionInClass.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !CHECK_TYPE
 
 import kotlin.reflect.*
@@ -5,7 +6,7 @@ import kotlin.reflect.*
 class A
 
 fun foo() {}
-fun bar(<!UNUSED_PARAMETER!>x<!>: Int) {}
+fun bar(x: Int) {}
 fun baz() = "OK"
 
 class B {