cps-ir: Set runtime type information for new objects that require it.

tests/compiler/dart2js/backend_dart/sexpr_unstringifier.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.
 
 // SExpressionUnstringifier implements the inverse operation to
 // [SExpressionStringifier].
 
 library sexpr_unstringifier;
 
 import 'package:compiler/src/constants/expressions.dart'
@@ skipping 353 matching lines @@
     dart_types.DartType type = new DummyNamedType(split[0]);
     Element element = new DummyElement((split.length == 1) ? "" : split[1]);
 
     List<Primitive> args = parsePrimitiveList();
 
     Continuation cont = name2variable[tokens.read()];
     assert(cont != null);
 
     tokens.consumeEnd();
     Selector selector = dummySelector(constructorName, args.length);
-    return new InvokeConstructor(type, element, selector, cont, args);
+    return new InvokeConstructor.byType(type, element, selector, cont, args);
   }
 
   /// (InvokeContinuation rec? name (args))
   InvokeContinuation parseInvokeContinuation() {
     tokens.consumeStart(INVOKE_CONTINUATION);
     String name = tokens.read();
     bool isRecursive = name == "rec";
     if (isRecursive) name = tokens.read();
 
     Continuation cont = name2variable[name];
@@ skipping 320 matching lines @@
     return new ReifyTypeVar(type);
   }
 
   /// (This)
   This parseThis() {
     tokens.consumeStart(THIS);
     tokens.consumeEnd();
     return new This();
   }
 }