Compile tearoffs of static functions as constants.

pkg/fletchc/lib/src/fletch_constants.dart

 // Copyright (c) 2015, the Fletch 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.md file.
 
 library fletchc.fletch_constants;
 
 import 'package:compiler/src/constants/expressions.dart' show
     ConstantExpression;
 
 import 'package:compiler/src/constants/values.dart' show
@@ skipping 42 matching lines @@
   accept(visitor, arg) {
     throw new UnsupportedError("FletchClassConstant.accept");
   }
 
   String unparse() => toStructuredString();
 
   String toStructuredString() {
     return 'FletchClassConstant($classId)';
   }
 }
+
+class FletchClassInstanceConstant extends ConstantValue {

[ahe, 2015/04/07 15:00:11]

Why is this needed?

[Anders Johnsen, 2015/04/08 06:32:14]

Because we create artificial constants, not present in the Dart system: a const
instance of a generated tearoff class.

+  final int classId;
+
+  FletchClassInstanceConstant(this.classId);
+
+  DartType getType(CoreTypes types) => const DynamicType();
+
+  List<ConstantValue> getDependencies() => const <ConstantValue>[];
+
+  accept(visitor, arg) {
+    throw new UnsupportedError("FletchClassInstanceConstant.accept");
+  }
+
+  String unparse() => toStructuredString();
+
+  String toStructuredString() {
+    return 'FletchClassInstanceConstant($classId)';
+  }
+}