add test files

js/js.translator/testFiles/expression/function/cases/functionInsideFunction.kt

@@ -0,0 +1,19 @@
+package foo
+
+
+fun box() : Boolean{
+    fun f() = 3
+
+    return (((f() + f()) == 6) && (b() == 24))
+}
+
+
+fun b() : Int {
+
+    fun a() : Int {
+        fun c() = 4
+        return c() * 3
+    }
+    val a = 2
+    return a() * a
+}