Fix vm code base so that it can be built for --arch=simarm (no snapshot yet).

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 17160)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, 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.
 
@@ -1608,12 +1608,22 @@
 };
 
 
-class RangeBoundary : public ValueObject {
+class RangeBoundary {
  public:
   enum Kind { kUnknown, kSymbol, kConstant };
 
   RangeBoundary() : kind_(kUnknown), value_(0), offset_(0) { }
 
+  RangeBoundary(const RangeBoundary& other)
+      : kind_(other.kind_), value_(other.value_), offset_(other.offset_) { }
+
+  RangeBoundary& operator=(const RangeBoundary& other) {
+    kind_ = other.kind_;
+    value_ = other.value_;
+    offset_ = other.offset_;
+    return *this;
+  }
+
   static RangeBoundary FromConstant(intptr_t val) {
     return RangeBoundary(kConstant, val, 0);
   }
@@ -4192,11 +4202,20 @@
 class Environment : public ZoneAllocated {
  public:
   // Iterate the non-NULL values in the innermost level of an environment.
-  class ShallowIterator : public ValueObject {
+  class ShallowIterator {
    public:
     explicit ShallowIterator(Environment* environment)
         : environment_(environment), index_(0) { }
 
+    ShallowIterator(const ShallowIterator& other)
+        : environment_(other.environment_), index_(other.index_) { }
+
+    ShallowIterator& operator=(const ShallowIterator& other) {
+      environment_ = other.environment_;
+      index_ = other.index_;
+      return *this;
+    }
+
     Environment* environment() const { return environment_; }
 
     void Advance() {