Add 64-bit stubs to call into the runtime and to call native functions.

runtime/vm/code_generator_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"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/code_generator.h"
 
 #include "lib/error.h"
@@ skipping 785 matching lines @@
           AbstractType::ZoneHandle(parsed_function().function().result_type()),
           String::ZoneHandle(String::NewSymbol("function result")));
     }
   }
   GenerateReturnEpilog();
 }
 
 
 void CodeGenerator::VisitLiteralNode(LiteralNode* node) {
   if (!IsResultNeeded(node)) return;
-  const Object& literal = node->literal();
-  if (literal.IsSmi()) {
-    __ pushl(Immediate(reinterpret_cast<int32_t>(literal.raw())));
-  } else {
-    __ PushObject(literal);
-  }
+  __ PushObject(node->literal());
 }
 
 
 void CodeGenerator::VisitTypeNode(TypeNode* node) {
   // Type nodes are handled specially by the code generator.
   UNREACHABLE();
 }
 
 
 void CodeGenerator::VisitAssignableNode(AssignableNode* node) {
@@ skipping 1924 matching lines @@
                         message_buffer, kMessageBufferSize,
                         format, args);
   va_end(args);
   Isolate::Current()->long_jump_base()->Jump(1, message_buffer);
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32