[dart2dart] fix after https://codereview.chromium.org/11227007

lib/compiler/implementation/tree/unparser.dart

 // Copyright (c) 2012, 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.
 
 part of tree;
 
 String unparse(Node node) {
   Unparser unparser = new Unparser();
   unparser.unparse(node);
   return unparser.result;
@@ skipping 91 matching lines @@
     visit(node.conditionStatement);
     visit(node.update);
     sb.add(')');
     visit(node.body);
   }
 
   visitFunctionDeclaration(FunctionDeclaration node) {
     visit(node.function);
   }
 
-  visitFunctionExpression(FunctionExpression node) {
-    // Check length to not print unnecessary whitespace.
-    if (node.modifiers.nodes.length() > 0) {
-      visit(node.modifiers);
-      sb.add(' ');
-    }
-    if (node.returnType != null) {
-      visit(node.returnType);
-      sb.add(' ');
-    }
-    if (node.getOrSet != null) {
-      add(node.getOrSet.value);
-      sb.add(' ');
-    }
+  void unparseFunctionName(Node name) {
     // TODO(antonm): that's a workaround as currently FunctionExpression
     // names are modelled with Send and it emits operator[] as only
     // operator, without [] which are expected to be emitted with
     // arguments.
-    if (node.name is Send) {
-      Send send = node.name;
+    if (name is Send) {
+      Send send = name;
       assert(send is !SendSet);
       if (!send.isOperator) {
         // Looks like a factory method.
         visit(send.receiver);
         sb.add('.');
       } else {
         visit(send.receiver);
         Identifier identifier = send.selector.asIdentifier();
         if (identical(identifier.token.kind, KEYWORD_TOKEN)) {
           sb.add(' ');
         } else if (identifier.source == const SourceString('negate')) {
           // TODO(ahe): Remove special case for negate.
           sb.add(' ');
         }
       }
       visit(send.selector);
     } else {
-      visit(node.name);
+      visit(name);
     }
+  }
+
+  visitFunctionExpression(FunctionExpression node) {
+    // Check length to not print unnecessary whitespace.
+    if (node.modifiers.nodes.length() > 0) {
+      visit(node.modifiers);
+      sb.add(' ');
+    }
+    if (node.returnType != null) {
+      visit(node.returnType);
+      sb.add(' ');
+    }
+    if (node.getOrSet != null) {
+      add(node.getOrSet.value);
+      sb.add(' ');
+    }
+    unparseFunctionName(node.name);
     visit(node.parameters);
     visit(node.initializers);
     visit(node.body);
   }
 
   visitIdentifier(Identifier node) {
     add(node.token.value);
   }
 
   visitIf(If node) {
@@ skipping 432 matching lines @@
   }
 
   visitStatement(Statement node) {
     throw 'internal error'; // Should not be called.
   }
 
   visitStringNode(StringNode node) {
     throw 'internal error'; // Should not be called.
   }
 }