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

compiler/testData/diagnostics/tests/Constants.fir.kt

@@ -31,11 +31,11 @@ fun test() {
 
     <!INAPPLICABLE_CANDIDATE!>checkSubtype<!><Double>(1)
     <!INAPPLICABLE_CANDIDATE!>checkSubtype<!><Float>(1)
-    
+
     1 as Byte
     1 as Int
     0xff as Long
-    
+
     1.1 as Int
     <!INAPPLICABLE_CANDIDATE!>checkSubtype<!><Int>(1.1)
 
@@ -50,4 +50,4 @@ fun test() {
     <!INAPPLICABLE_CANDIDATE!>testFun<!><Float>(1.0)
     testFun(1.0.toFloat())
     testFun<Float>(1.0.toFloat())
-}
+}