Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/reflection/enclosing/lambdaInObjectLiteralSuperCall.kt

@@ -0,0 +1,23 @@
+// WITH_REFLECT
+
+open class C(val a: Any)
+
+fun box(): String {
+    val l = object : C({}) {
+    }
+
+    val javaClass = l.a.javaClass
+    if (javaClass.getEnclosingConstructor() != null) return "ctor should be null"
+
+    val enclosingMethod = javaClass.getEnclosingMethod()!!.getName()
+    if (enclosingMethod != "box") return "method: $enclosingMethod"
+
+    val enclosingClass = javaClass.getEnclosingClass()!!.getName()
+    if (enclosingClass != "LambdaInObjectLiteralSuperCallKt" || enclosingClass != l.javaClass.getEnclosingClass()!!.getName())
+        return "enclosing class: $enclosingClass"
+
+    val declaringClass = javaClass.getDeclaringClass()
+    if (declaringClass != null) return "anonymous function has a declaring class: $declaringClass"
+
+    return "OK"
+}