Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/reflection/mapping/memberProperty.kt

@@ -0,0 +1,25 @@
+// WITH_REFLECT
+
+import kotlin.reflect.jvm.*
+import kotlin.test.assertEquals
+
+class K(var value: Long)
+
+fun box(): String {
+    val p = K::value
+
+    assert(p.javaField != null) { "Fail p field" }
+
+    val getter = p.javaGetter!!
+    val setter = p.javaSetter!!
+
+    assertEquals(getter, K::class.java.getMethod("getValue"))
+    assertEquals(setter, K::class.java.getMethod("setValue", Long::class.java))
+
+    val k = K(42L)
+    assert(getter.invoke(k) == 42L) { "Fail k getter" }
+    setter.invoke(k, -239L)
+    assert(getter.invoke(k) == -239L) { "Fail k setter" }
+
+    return "OK"
+}