dart2dart: Support for all constants in new backend.

sdk/lib/_internal/compiler/implementation/dart_backend/tree_tracer.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 dart_backend.tracer;
 
 import 'dart:async' show EventSink;
 import '../tracer.dart';
 import 'dart_tree.dart';
 
@@ skipping 43 matching lines @@
     visitStatement(function.body);
   }
 
   visitVariable(Variable node) {}
   visitInvokeStatic(InvokeStatic node) {}
   visitInvokeMethod(InvokeMethod node) {}
   visitInvokeConstructor(InvokeConstructor node) {}
   visitConcatenateStrings(ConcatenateStrings node) {}
   visitLiteralList(LiteralList node) {}
   visitLiteralMap(LiteralMap node) {}
-  visitInvokeConstConstructor(InvokeConstConstructor node) {}
   visitConstant(Constant node) {}
   visitConditional(Conditional node) {}
   visitLogicalOperator(LogicalOperator node) {}
   visitNot(Not node) {}
 
   visitLabeledStatement(LabeledStatement node) {
     Block target = new Block(node.label);
     breakTargets[node.label] = target;
     visitStatement(node.body);
     _addBlock(target);
@@ skipping 230 matching lines @@
   }
 
   String visitInvokeConstructor(InvokeConstructor node) {
     String callName;
     if (node.target.name.isEmpty) {
       callName = '${node.type}';
     } else {
       callName = '${node.type}.${node.target.name}';
     }
     String args = formatArguments(node);
-    return "new $callName($args)";
+    String keyword = node.constant != null ? 'const' : 'new';
+    return "$keyword $callName($args)";
   }
 
   String visitConcatenateStrings(ConcatenateStrings node) {
     String args = node.arguments.map(visitExpression).join(', ');
     return "concat [$args]";
   }
 
   String visitLiteralList(LiteralList node) {
     String values = node.values.map(visitExpression).join(', ');
     return "list [$values]";
   }
 
   String visitLiteralMap(LiteralMap node) {
     List<String> entries = new List<String>();
     for (int i = 0; i < node.values.length; ++i) {
       String key = visitExpression(node.keys[i]);
       String value = visitExpression(node.values[i]);
       entries.add("$key: $value");
     }
     return "map [${entries.join(', ')}]";
   }
 
-  String visitInvokeConstConstructor(InvokeConstConstructor node) {
-    String callName;
-    if (node.target.name.isEmpty) {
-      callName = '${node.type}';
-    } else {
-      callName = '${node.type}.${node.target.name}';
-    }
-    String arguments = node.arguments.map(visitExpression).join(', ');
-    return "const $callName($arguments)";
-  }
-
   String visitConstant(Constant node) {
     return "${node.value}";
   }
 
   bool usesInfixNotation(Expression node) {
     return node is Conditional || node is LogicalOperator;
   }
 
   String visitConditional(Conditional node) {
     String condition = visitExpression(node.condition);
@@ skipping 42 matching lines @@
       String prefix = v.element == null ? 'v' : '${v.element.name}_';
       while (name == null || _usedNames.contains(name)) {
         name = "$prefix${_counter++}";
       }
       _names[v] = name;
       _usedNames.add(name);
     }
     return name;
   }
 }