Compile tearoffs of static functions as constants.

pkg/fletchc/lib/src/fletch_backend.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_backend;
 
 import 'dart:async' show
     Future;
 
 import 'package:compiler/src/dart2jslib.dart' show
@@ skipping 57 matching lines @@
     InvokeNative;
 
 import 'package:compiler/src/resolution/resolution.dart' show
     TreeElements;
 
 import 'package:compiler/src/library_loader.dart' show
     LibraryLoader;
 
 import 'fletch_constants.dart' show
     FletchClassConstant,
-    FletchFunctionConstant;
+    FletchFunctionConstant,
+    FletchClassInstanceConstant;
 
 import 'compiled_function.dart' show
     CompiledFunction;
 
 import 'fletch_context.dart';
 
 import 'fletch_selector.dart';
 
 import 'function_codegen.dart';
 
@@ skipping 826 matching lines @@
         ConstructedConstantValue value = constant;
         ClassElement classElement = value.type.element;
         CompiledClass compiledClass = compiledClasses[classElement];
         for (ConstantValue field in value.fields) {
           int fieldId = context.compiledConstants[field];
           commands.add(new PushFromMap(MapId.constants, fieldId));
         }
         commands
             ..add(new PushFromMap(MapId.classes, compiledClass.id))
             ..add(const PushNewInstance());
+      } else if (constant is FletchClassInstanceConstant) {
+        commands
+            ..add(new PushFromMap(MapId.classes, constant.classId))
+            ..add(const PushNewInstance());
       } else {
         throw "Unsupported constant: ${constant.toStructuredString()}";
       }
       commands.add(new PopToMap(MapId.constants, id));
     });
 
     for (CompiledClass compiledClass in classes) {
       CompiledClass superclass = compiledClass.superclass;
       if (superclass == null) continue;
       commands.add(new PushFromMap(MapId.classes, compiledClass.id));
@@ skipping 220 matching lines @@
     compiler.reportError(
         spannable, MessageKind.GENERIC, {'text': reason});
     var constString = constantSystem.createString(
         new DartString.literal(reason));
     context.markConstantUsed(constString);
     function
         ..builder.loadConst(function.allocateConstant(constString))
         ..builder.emitThrow();
   }
 }