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

^KT-62425

compiler/testData/diagnostics/testsWithJsStdLibAndBackendCompilation/jsCode/error.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
 val code = """
     var s = "hello"
     + );
@@ -19,7 +24,7 @@ fun main(): Unit {
     js(<!JSCODE_ERROR!>"var " + " = " + "10;"<!>)
 
     val n = 10
-    js(<!JSCODE_ERROR!>"var = $n;"<!>)
+    js(<!JSCODE_ERROR!>"var = $<!JSCODE_ARGUMENT_NON_CONST_EXPRESSION!>n<!>;"<!>)
 
-    js(<!JSCODE_ERROR!>code<!>)
+    js(<!JSCODE_ARGUMENT_NON_CONST_EXPRESSION, JSCODE_ERROR!>code<!>)
 }