Ensure that constant field initializers are canonicalized

tests/language/regress_27164_test.dart

Index: tests/language/regress_27164_test.dart
diff --git a/pkg/dev_compiler/test/codegen/language/static_field_override2_test.dart b/tests/language/regress_27164_test.dart
similarity index 51%
copy from pkg/dev_compiler/test/codegen/language/static_field_override2_test.dart
copy to tests/language/regress_27164_test.dart
index 7942c35d74f9d3922e1139fbc3f3d25692c8299d..6f4513f5004ad5664a58c84331c884ae8c8a6887 100644
--- a/pkg/dev_compiler/test/codegen/language/static_field_override2_test.dart
+++ b/tests/language/regress_27164_test.dart
@@ -2,17 +2,19 @@
 // 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.
 
+// Regression test for issue 27164.
+
 import 'package:expect/expect.dart';
 
-class Foo {
-  static int get x => 42;
-  static void set x(value) {}
-}
+String simpleEcho(String arg) => arg;
 
-class Bar extends Foo {
-  static int x = 12;
+class Echo {
+  final echo;
+  // Check that the expression simpleEcho is a compile-time constant.
+  const Echo() : echo = simpleEcho;
 }
 
 void main() {
-  Expect.equals(12, Bar.x);
-}
+  Expect.equals("hello", const Echo().echo("hello"));
+}
+