FIR: Update integer literal-related tests

They started failing once we began reporting diagnostics from completion

^KT-46419 Relates

compiler/testData/codegen/box/binaryOp/overflowLong.kt

@@ -1,3 +1,5 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
 fun box(): String {
     val a: Long = 2147483647 + 1
     if (a != -2147483648L) return "fail: in this case we should add to ints and than cast the result to long - overflow expected"
@@ -11,4 +13,4 @@ fun box(): String {
     if (l4 < l3) return "fail: Long.MIN_VALUE - 1 should overflow to positive."
 
     return "OK"
-}
+}