Started new compiler for ia32. Getters and setters can be intrinsified within the new compiler.

runtime/vm/assembler_ia32.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/heap.h"
 #include "vm/memory_region.h"
@@ skipping 1544 matching lines @@
 void Assembler::EmitGenericShift(int rm,
                                  Register operand,
                                  Register shifter) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   ASSERT(shifter == ECX);
   EmitUint8(0xD3);
   EmitOperand(rm, Operand(operand));
 }
 
 
-void Assembler::Comment(const char* comment) {
+void Assembler::Comment(const char* format, ...) {
   if (FLAG_code_comments) {
+    char buffer[1024];
+
+    va_list args;
+    va_start(args, format);
+    OS::VSNPrint(buffer, sizeof(buffer), format, args);
+    va_end(args);
+
     comments_.Add(new CodeComment(buffer_.GetPosition(),
-                                  String::Handle(String::New(comment))));
+                                  String::Handle(String::New(buffer))));
   }
 }
 
 
 const Code::Comments& Assembler::GetCodeComments() const {
   Code::Comments& comments = Code::Comments::New(comments_.length());
 
   for (intptr_t i = 0; i < comments_.length(); i++) {
     comments.SetPCOffsetAt(i, comments_[i]->pc_offset());
     comments.SetCommentAt(i, comments_[i]->comment());
   }
 
   return comments;
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32