[JS IR] Fix JS code diagnostics tests according to new KLIB checks

^KT-62425

compiler/testData/diagnostics/testsWithJsStdLibAndBackendCompilation/jsCode/warning.kt

@@ -1,3 +1,8 @@
+// FIR_DIFFERENCE
+// The diagnostic cannot be implemented with the FIR frontend checker because it requires constant evaluation over FIR.
+// The diagnostic is implemented as a klib check over IR.
+
+// ERROR_POLICY: SEMANTIC
 fun main(): Unit {
     js("var a =<!JSCODE_WARNING!> 08<!>;")
 
@@ -6,5 +11,5 @@ fun main(): Unit {
         08<!>;""")
 
     val code = "var a = 08;"
-    js(<!JSCODE_WARNING!>code<!>)
-}
+    js(<!JSCODE_ARGUMENT_NON_CONST_EXPRESSION, JSCODE_WARNING!>code<!>)
+}