Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/intrinsics/defaultObjectMapping.kt

@@ -0,0 +1,20 @@
+// WITH_RUNTIME
+
+import kotlin.test.assertEquals
+
+fun box(): String {
+    assertEquals(java.lang.Integer.MIN_VALUE, Int.MIN_VALUE)
+    assertEquals(java.lang.Byte.MAX_VALUE, Byte.MAX_VALUE)
+
+/*
+// TODO: uncomment when callable references to object members are supported
+    assertEquals("MIN_VALUE", (Int.Companion::MIN_VALUE).name)
+    assertEquals("MAX_VALUE", (Double.Companion::MAX_VALUE).name)
+    assertEquals("MIN_VALUE", (Float.Companion::MIN_VALUE).name)
+    assertEquals("MAX_VALUE", (Long.Companion::MAX_VALUE).name)
+    assertEquals("MIN_VALUE", (Short.Companion::MIN_VALUE).name)
+    assertEquals("MAX_VALUE", (Byte.Companion::MAX_VALUE).name)
+*/
+
+    return "OK"
+}