Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/reflection/noReflectAtRuntime/propertyInstanceof.kt

@@ -0,0 +1,37 @@
+// WITH_RUNTIME
+
+import kotlin.reflect.*
+import kotlin.test.assertTrue
+import kotlin.test.assertFalse
+
+class A {
+    val readonly: String = ""
+    var mutable: String = ""
+}
+
+val readonly: String = ""
+var mutable: String = ""
+
+fun box(): String {
+    assertTrue(::readonly is KProperty0<*>)
+    assertFalse(::readonly is KMutableProperty0<*>)
+    assertFalse(::readonly is KProperty1<*, *>)
+    assertFalse(::readonly is KProperty2<*, *, *>)
+
+    assertTrue(::mutable is KProperty0<*>)
+    assertTrue(::mutable is KMutableProperty0<*>)
+    assertFalse(::mutable is KProperty1<*, *>)
+    assertFalse(::mutable is KProperty2<*, *, *>)
+
+    assertFalse(A::readonly is KProperty0<*>)
+    assertTrue(A::readonly is KProperty1<*, *>)
+    assertFalse(A::readonly is KMutableProperty1<*, *>)
+    assertFalse(A::readonly is KProperty2<*, *, *>)
+
+    assertFalse(A::mutable is KProperty0<*>)
+    assertTrue(A::mutable is KProperty1<*, *>)
+    assertTrue(A::mutable is KMutableProperty1<*, *>)
+    assertFalse(A::mutable is KProperty2<*, *, *>)
+
+    return "OK"
+}