[K/JS] Use only single variant of default arguments function wrapper for exported and not-exported functions

js/js.translator/testData/box/export/exportDefaultParameterAndOverrideIt.kt

@@ -0,0 +1,82 @@
+// EXPECTED_REACHABLE_NODES: 1252
+// RUN_PLAIN_BOX_FUNCTION
+// INFER_MAIN_MODULE
+// SKIP_DCE_DRIVEN
+// IGNORE_BACKEND: JS
+
+// MODULE: export_default_method
+// FILE: lib.kt
+
+@JsExport
+abstract class Adapter {
+    abstract fun method(o: String = "O", k: String = "K")
+}
+
+@JsExport
+class TwoArgumentsWrapper(val adapter: Adapter) {
+    fun method(a: String, b: String) {
+        adapter.method(a, b)
+    }
+}
+
+@JsExport
+class OneArgumentWrapper(val adapter: Adapter) {
+    fun method(param: String) {
+        adapter.method(param)
+    }
+}
+
+@JsExport
+class NoArgumentsWrapper(val adapter: Adapter) {
+    fun method() {
+        adapter.method()
+    }
+}
+
+
+// FILE: test.js
+
+function box() {
+    const Adapter = this.export_default_method.Adapter
+    const Wrapper2 = this.export_default_method.TwoArgumentsWrapper
+    const Wrapper1 = this.export_default_method.OneArgumentWrapper
+    const Wrapper0 = this.export_default_method.NoArgumentsWrapper
+
+    class WebAdapter extends Adapter {
+        constructor(name) {
+            super()
+            this.resetError(name)
+        }
+
+        method(o = "O", k = "K") {
+            this.result = o + k
+        }
+
+        resetError(name)  {
+            this.result = `Error: ${name}'s overridden method was not called`
+        }
+    }
+
+    const webAdapter = new WebAdapter("webAdapter2")
+
+    const wrapper2 = new Wrapper2(webAdapter)
+    wrapper2.method("O", "K")
+
+    if (webAdapter.result !== "OK") return webAdapter.result
+
+    webAdapter.resetError("webAdapter1")
+
+    const wrapper1 = new Wrapper1(webAdapter)
+    wrapper1.method("O")
+
+    if (webAdapter.result !== "OK") return webAdapter.result
+
+    webAdapter.resetError("webAdapter0")
+
+    const wrapper0 = new Wrapper0(webAdapter)
+    wrapper0.method()
+
+    if (webAdapter.result !== "OK") return webAdapter.result
+
+    return "OK"
+}