Migrate the language tests up to arithmetic_test.

tests/language/abstract_runtime_error_test.dart

Index: tests/language/abstract_runtime_error_test.dart
diff --git a/tests/language/abstract_runtime_error_test.dart b/tests/language/abstract_runtime_error_test.dart
deleted file mode 100644
index a34791f72adda3b9be30718250dc62b1d5dac4aa..0000000000000000000000000000000000000000
--- a/tests/language/abstract_runtime_error_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, 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";
-
-// Test various conditions around instantiating an abstract class.
-
-// From The Dart Programming Language Specification, 11.11.1 "New":
-//   If q is a constructor of an abstract class then an
-//   AbstractClassInstantiation- Error is thrown.
-
-abstract class Interface {
-  void foo(); //# 03: static type warning
-}
-
-abstract class AbstractClass {
-  toString() => 'AbstractClass';
-}
-
-class ConcreteSubclass extends AbstractClass {
-  toString() => 'ConcreteSubclass';
-}
-
-class NonAbstractClass implements Interface {
-  toString() => 'NonAbstractClass';
-}
-
-Interface interface() => new Interface(); //# 01: static type warning
-
-AbstractClass abstractClass() => new AbstractClass(); //# 02: static type warning
-
-bool isAbstractClassInstantiationError(e) {
-  return e is AbstractClassInstantiationError;
-}
-
-void main() {
-  Expect.throws(interface, isAbstractClassInstantiationError, //     //# 01: continued
-                "expected AbstractClassInstantiationError"); //      //# 01: continued
-  Expect.throws(abstractClass, isAbstractClassInstantiationError, // //# 02: continued
-                "expected AbstractClassInstantiationError"); //      //# 02: continued
-  Expect.stringEquals('ConcreteSubclass', '${new ConcreteSubclass()}');
-  Expect.stringEquals('NonAbstractClass', '${new NonAbstractClass()}');
-}