JS backend: tests for reflection support

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

@@ -0,0 +1,20 @@
+// This test was adapted from compiler/testData/codegen/boxWithStdlib/callableReference/function/.
+package foo
+
+fun run(arg: Int, funRef:(Int) -> Int): Int {
+    return funRef(arg)
+}
+
+fun inc(x: Int) = x + 1
+
+fun tmp():Function1<Int, Int> {
+    return ::inc
+}
+
+fun box(): Boolean {
+    if (tmp()(5) != 6) return false
+
+    if (run(5, tmp()) != 6) return false
+
+    return true
+}