Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/reflection/properties/simpleGetProperties.kt

@@ -0,0 +1,25 @@
+// WITH_REFLECT
+
+import kotlin.reflect.*
+
+class A(param: String) {
+    val int: Int get() = 42
+    val string: String = param
+    var anyVar: Any? = null
+
+    val List<IntRange>.extensionToList: Unit get() {}
+
+    fun notAProperty() {}
+}
+
+fun box(): String {
+    val klass = A::class.java.kotlin
+
+    val props = klass.memberProperties
+
+    val names = props.map { it.name }.sorted()
+    assert(names == listOf("anyVar", "int", "string")) { "Fail names: $props" }
+
+    val stringProp = props.firstOrNull { it.name == "string" } ?: return "Fail, string not found: $props"
+    return stringProp.get(A("OK")) as String
+}