Remove traces of 'boxWithStdlib' directory in other tests

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

@@ -1,4 +1,4 @@
-// This test was adapted from compiler/testData/codegen/boxWithStdlib/callableReference/function/.
+// This test was adapted from compiler/testData/codegen/box/callableReference/function/.
 package foo
 
 fun run(arg: Int, funRef:(Int) -> Int): Int {
@@ -17,4 +17,4 @@ fun box(): Boolean {
     if (run(5, tmp()) != 6) return false
 
     return true
-}
+}