Fix test data about JsExport

It allows only for top-level declarations, plus JsName is needed to
 avoid error about method redeclaration

idea/testData/inspectionsLocal/unusedSymbol/jsExport.kt

@@ -1,12 +1,14 @@
 // PROBLEM: none
 // JS
-class Person(val name: String) {
-    fun hello() {
-        println("Hello $name!")
-    }
 
-    @JsExport
-    fun <caret>hello(greeting: String) {
-        println("$greeting $name!")
-    }
+val name: String = ""
+
+fun hello() {
+    println("Hello $name!")
+}
+
+@JsExport
+@JsName("other")
+fun <caret>hello(greeting: String) {
+    println("$greeting $name!")
 }