Compute correct names for closures in operator methods.

pkg/compiler/lib/src/constants/expressions.dart

 // Copyright (c) 2014, 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.
 
 library dart2js.constants.expressions;
 
 import '../common.dart';
 import '../constants/constant_system.dart';
 import '../core_types.dart';
 import '../dart_types.dart';
@@ skipping 466 matching lines @@
       values[index]._createStructuredText(sb);
     }
     sb.write('])');
   }
 
   @override
   ConstantValue evaluate(
       Environment environment, ConstantSystem constantSystem) {
     Map<ConstantValue, ConstantValue> valueMap =
         <ConstantValue, ConstantValue>{};
     for (int index = 0; index < keys.length; index++) {

[Johnni Winther, 2016/07/04 13:40:36]

dartfmt

-      ConstantValue key =
-          keys[index].evaluate(environment, constantSystem);
-      ConstantValue value =
-          values[index].evaluate(environment, constantSystem);
+      ConstantValue key = keys[index].evaluate(environment, constantSystem);
+      ConstantValue value = values[index].evaluate(environment, constantSystem);
       valueMap[key] = value;
     }
-    return constantSystem.createMap(
-        environment.compiler,
-        type,
-        valueMap.keys.toList(),
-        valueMap.values.toList());
+    return constantSystem.createMap(environment.compiler, type,
+        valueMap.keys.toList(), valueMap.values.toList());
   }
 
   ConstantExpression apply(NormalizedArguments arguments) {
     return new MapConstantExpression(
         type,
         keys.map((k) => k.apply(arguments)).toList(),
         values.map((v) => v.apply(arguments)).toList());
   }
 
   @override
@@ skipping 1382 matching lines @@
     visit(exp.name);
     if (exp.defaultValue != null) {
       sb.write(', defaultValue: ');
       visit(exp.defaultValue);
     }
     sb.write(')');
   }
 
   String toString() => sb.toString();
 }