[JS IR BE] Add JsExport annotations

js/js.translator/testData/box/jsName/avoidNameClash.kt

@@ -6,10 +6,10 @@ object A {
     @JsName("js_property") val f: String get() = "property"
 }
 
-fun test() = js("""
-var a = JS_TESTS.A;
-return a.js_method() + ";" + a.js_property;
-""")
+fun test(): dynamic {
+    val a = A.asDynamic()
+    return a.js_method() + ";" + a.js_property
+}
 
 fun box(): String {
     val result = test()

js/js.translator/testData/box/jsName/overriddenMethod.kt

@@ -8,10 +8,9 @@ class B : A() {
     override fun f(x: Int) = "B.f($x)"
 }
 
-fun test() = js("""
-var module = JS_TESTS;
-return new (module.A)().js_f(23) + ";" + new (module.B)().js_f(42);
-""")
+fun test(): dynamic {
+    return A().asDynamic().js_f(23) + ";" + B().asDynamic().js_f(42)
+}
 
 fun box(): String {
     val result = test()

js/js.translator/testData/box/jsName/overridenFromInterface.kt

@@ -8,10 +8,9 @@ class B : A {
     override fun f(x: Int) = "B.f($x)"
 }
 
-fun test() = js("""
-var module = JS_TESTS;
-return new (module.B)().js_f(23);
-""")
+fun test(): dynamic {
+    return B().asDynamic().js_f(23)
+}
 
 fun box(): String {
     val result = test()

js/js.translator/testData/box/jsName/simpleJsName.kt

@@ -10,10 +10,10 @@ object A {
     @JsName("js_q") val q: String get() = "q"
 }
 
-fun test() = js("""
-var a = JS_TESTS.A;
-return a.js_f(23) + ";" + a.js_g(42) + ";" + a.js_p + ";" + a.js_q;
-""")
+fun test(): dynamic {
+    var a = A.asDynamic()
+    return a.js_f(23) + ";" + a.js_g(42) + ";" + a.js_p + ";" + a.js_q
+}
 
 fun box(): String {
     val result = test()