[Wasm] Add JS box/native tests

js/js.tests/test/org/jetbrains/kotlin/generators/tests/GenerateJsTests.kt

@@ -39,6 +39,7 @@ fun main(args: Array<String>) {
             testClass<AbstractJsTranslatorWasmTest> {
                 model("box/main", pattern = "^([^_](.+))\\.kt$", targetBackend = TargetBackend.WASM)
                 model("box/kotlin.test/", pattern = "^([^_](.+))\\.kt$", targetBackend = TargetBackend.WASM)
+                model("box/native/", pattern = "^([^_](.+))\\.kt$", targetBackend = TargetBackend.WASM)
             }
 
             testClass<AbstractIrBoxJsES6Test> {

js/js.tests/test/org/jetbrains/kotlin/js/test/BasicWasmBoxTest.kt

@@ -86,6 +86,11 @@ abstract class BasicWasmBoxTest(
                 }
             }
 
+            val additionalJsFile = filePath.removeSuffix(".kt") + ".js"
+            if (File(additionalJsFile).exists()) {
+                jsFilesBefore += additionalJsFile
+            }
+
             val localCommonFile = file.parent + "/" + COMMON_FILES_NAME + "." + KotlinFileType.EXTENSION
             val localCommonFiles = if (File(localCommonFile).exists()) listOf(localCommonFile) else emptyList()