Minor in JS: moved test for additional vars during inline to separate directory

js/js.translator/testData/inlineSizeReduction/cases/simpleReturnFunction.kt

@@ -0,0 +1,21 @@
+package foo
+
+// CHECK_CONTAINS_NO_CALLS: test
+// CHECK_VARS_COUNT: function=test count=0
+
+// A copy of stdlib run function.
+// Copied to not to depend on run implementation.
+// It's important, that the body is just `return fn()`.
+inline fun evaluate<T>(fn: ()->T): T = fn()
+
+fun test(x: Int): Int =
+        evaluate {
+            evaluate { 2 } * evaluate { x }
+        }
+
+fun box(): String {
+    assertEquals(6, test(3))
+    assertEquals(8, test(4))
+
+    return "OK"
+}