Type check field initializers in the correct context.

tests/language/typecheck_multifield_declaration_test.dart

Index: tests/language/typecheck_multifield_declaration_test.dart
diff --git a/tests/language/typecheck_multifield_declaration_test.dart b/tests/language/typecheck_multifield_declaration_test.dart
new file mode 100644
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+++ b/tests/language/typecheck_multifield_declaration_test.dart
@@ -0,0 +1,16 @@
+// Copyright (c) 2016, 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.
+
+/// Checks that we can correctly typecheck multi-variable declarations on fields 
+/// and top-levels. This is also a regression test for Issue 27401.
+
+class A {}
+
+A a = new A(), b = new A();
+
+class B {
+  A a = new A(), b = new A();  
+}
+
+main() => [a, b, new B().a, new B().b];