Migrate test block 9 to Dart 2.0

tests/corelib/int_floor_to_double_test.dart

Index: tests/corelib/int_floor_to_double_test.dart
diff --git a/tests/corelib/int_floor_to_double_test.dart b/tests/corelib/int_floor_to_double_test.dart
deleted file mode 100644
index e87ae8c41f1e5bedadfb2f2ab5921fc6690072c1..0000000000000000000000000000000000000000
--- a/tests/corelib/int_floor_to_double_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.floorToDouble());
-  Expect.equals(1.0, 1.floorToDouble());
-  Expect.equals(0x1234, 0x1234.floorToDouble());
-  Expect.equals(0x12345678, 0x12345678.floorToDouble());
-  Expect.equals(0x123456789AB, 0x123456789AB.floorToDouble());
-  Expect.equals(81985529216486900.0, 0x123456789ABCDEF.floorToDouble());
-  Expect.equals(2.7898229935051914e+55,
-      0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.floorToDouble());
-  Expect.equals(-1.0, -1.floorToDouble());
-  Expect.equals(-0x1234, -0x1234.floorToDouble());
-  Expect.equals(-0x12345678, -0x12345678.floorToDouble());
-  Expect.equals(-0x123456789AB, -0x123456789AB.floorToDouble());
-  Expect.equals(-81985529216486900.0, -0x123456789ABCDEF.floorToDouble());
-  Expect.equals(-2.7898229935051914e+55,
-      -0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF.floorToDouble());
-
-  Expect.isTrue(0.floorToDouble() is double);
-  Expect.isTrue(1.floorToDouble() is double);
-  Expect.isTrue(0x1234.floorToDouble() is double);
-  Expect.isTrue(0x12345678.floorToDouble() is double);
-  Expect.isTrue(0x123456789AB.floorToDouble() is double);
-  Expect.isTrue(0x123456789ABCDEF.floorToDouble() is double);
-  Expect.isTrue(0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
-      .floorToDouble() is double);
-  Expect.isTrue(-1.floorToDouble() is double);
-  Expect.isTrue(-0x1234.floorToDouble() is double);
-  Expect.isTrue(-0x12345678.floorToDouble() is double);
-  Expect.isTrue(-0x123456789AB.floorToDouble() is double);
-  Expect.isTrue(-0x123456789ABCDEF.floorToDouble() is double);
-  Expect.isTrue(-0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF
-      .floorToDouble() is double);
-}