JS backend: testFiles -> testData

js/js.translator/testData/expression/function/cases/closureWithParameterAndBoxing.kt

@@ -0,0 +1,9 @@
+package foo
+
+fun box(): String {
+    return if (apply(5, {(arg: Int) -> arg + 13 }) == 18) "OK" else "fail"
+}
+
+fun apply(arg: Int, f: (p: Int) -> Int): Int {
+    return f(arg)
+}