Missed these files in last commit.

lib/compiler/implementation/ssa/nodes.dart

 // Copyright (c) 2011, 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.
 
 interface HVisitor<R> {
   R visitAdd(HAdd node);
   R visitBitAnd(HBitAnd node);
   R visitBitNot(HBitNot node);
   R visitBitOr(HBitOr node);
   R visitBitXor(HBitXor node);
@@ skipping 1768 matching lines @@
   // 'Not' only works on booleans. That's what we want as input.
   HType computeDesiredTypeForInput(HInstruction input) => HType.BOOLEAN;
 
   accept(HVisitor visitor) => visitor.visitNot(this);
   int typeCode() => 18;
   bool typeEquals(other) => other is HNot;
   bool dataEquals(HInstruction other) => true;
 }
 
 class HParameterValue extends HInstruction {
-  final Element element;
-
-  HParameterValue(this.element) : super(<HInstruction>[]);
+  HParameterValue(element) : super(<HInstruction>[]) {
+    sourceElement = element;
+  }
 
   void prepareGvn() {
     assert(!hasSideEffects());
   }
-  toString() => 'parameter ${element.name}';
+  toString() => 'parameter ${sourceElement.name}';
   accept(HVisitor visitor) => visitor.visitParameterValue(this);
   bool isCodeMotionInvariant() => true;
 }
 
 class HThis extends HParameterValue {
   HThis([HType type = HType.UNKNOWN]) : super(null) {
     guaranteedType = type;
   }
   toString() => 'this';
   accept(HVisitor visitor) => visitor.visitThis(this);
@@ skipping 689 matching lines @@
                        this.catchBlock,
                        this.finallyBlock);
 
   HBasicBlock get start() => body.start;
   HBasicBlock get end() =>
       finallyBlock === null ? catchBlock.end : finallyBlock.end;
 
   bool accept(HStatementInformationVisitor visitor) =>
     visitor.visitTryInfo(this);
 }