Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/jvmField/classFieldReference.kt

@@ -0,0 +1,42 @@
+// WITH_RUNTIME
+
+package zzz
+import java.lang.reflect.Field
+import kotlin.reflect.KProperty1
+import kotlin.test.assertEquals
+
+class A(val s1: String, val s2: String) {
+    @JvmField public val publicField = s1;
+    @JvmField internal val internalField = s2;
+
+    fun testAccessors() {
+        checkAccessor(A::publicField, s1, this)
+        checkAccessor(A::internalField, s2, this)
+    }
+}
+
+
+/*
+// TODO: uncomment when callable references to object members are supported
+class AWithCompanion {
+    companion object {
+        @JvmField public val publicField = "1";
+        @JvmField internal val internalField = "2";
+
+        fun testAccessors() {
+            checkAccessor(AWithCompanion.Companion::publicField, "1", AWithCompanion.Companion)
+            checkAccessor(AWithCompanion.Companion::internalField, "2", AWithCompanion.Companion)
+        }
+    }
+}
+*/
+
+fun box(): String {
+    A("1", "2").testAccessors()
+    // AWithCompanion.testAccessors()
+    return "OK"
+}
+
+public fun <T, R> checkAccessor(prop: KProperty1<T, R>, value: R, receiver: T) {
+    assertEquals(prop.get(receiver), value, "Property ${prop} has wrong value")
+}