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

compiler/testData/diagnostics/testsWithStdLib/regression/kt2082.kt

@@ -1,10 +1,10 @@
 fun foo(c : Collection<String>) = {
     c.filter{
         val s : String? = bar()
-        if (s == null) <!UNUSED_EXPRESSION!>false<!> // here!
+        if (s == null) false // here!
         zoo(<!TYPE_MISMATCH!>s<!>)
     }
 }
 
 fun bar() : String? = null
-fun zoo(<!UNUSED_PARAMETER!>s<!> : String) : Boolean = true
+fun zoo(s : String) : Boolean = true