JS backend: tests for reflection support

js/js.translator/testData/callableReference/function/cases/classMemberAndExtensionCompatibility.kt

@@ -0,0 +1,32 @@
+package foo
+
+fun run(a: A, arg: String, funRef:A.(String) -> String): String {
+    return a.(funRef)(arg)
+}
+
+class A {
+    val s = "sA"
+    fun memBar(other: String): String = s +":memBar:" + other
+}
+
+fun A.extBar(other: String):String = s + ":extBar:" + other
+
+fun box():String {
+    fun A.locExtBar(other: String):String = s + ":locExtBar:" + other
+
+    val a = A()
+
+    var r = run(a, "!!", A::memBar)
+    if (r != "sA:memBar:!!") return r
+
+    r = run(a, "!!", A::extBar)
+    if (r != "sA:extBar:!!") return r
+
+    r = run(a, "!!", A::locExtBar)
+    if (r != "sA:locExtBar:!!") return r
+
+    r = run(a, "!!") {A.(other:String):String -> s + ":literal:" + other }
+    if (r != "sA:literal:!!") return r
+
+    return "OK"
+}