JS: move inline test to box tests

js/js.translator/testData/box/inlineMultiFile/lambdaInLambda2.kt

@@ -0,0 +1,41 @@
+/*
+ * Copy of JVM-backend test
+ * Found at: compiler/testData/codegen/boxInline/lambdaTransformation/lambdaInLambda2.1.kt
+ */
+
+// FILE: foo.kt
+package foo
+
+import test.*
+
+fun test1(prefix: String): String {
+    var result = "fail"
+    mfun {
+        concat("start") {
+            if (it.startsWith(prefix)) {
+                result = "OK"
+            }
+        }
+    }
+
+    return result
+}
+
+fun box(): String {
+    if (test1("start") != "OK") return "fail1"
+    if (test1("nostart") != "fail") return "fail2"
+
+    return "OK"
+}
+
+
+// FILE: test.kt
+package test
+
+inline fun <R> mfun(f: () -> R) {
+    f()
+}
+
+fun concat(suffix: String, l: (s: String) -> Unit)  {
+    l(suffix)
+}