Implement type cast in the VM.

runtime/vm/code_generator_ia32.cc

 // Copyright (c) 2012, 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 1861 matching lines @@
   __ Bind(&done);
 }
 
 
 void CodeGenerator::VisitComparisonNode(ComparisonNode* node) {
   const Bool& bool_true = Bool::ZoneHandle(Bool::True());
   const Bool& bool_false = Bool::ZoneHandle(Bool::False());
   node->left()->Visit(this);
 
   // The instanceof operator needs special handling.
-  if (Token::IsInstanceofOperator(node->kind())) {
+  if (Token::IsTypeTestOperator(node->kind())) {
     __ popl(EAX);  // Left operand.
     ASSERT(node->right()->IsTypeNode());
     GenerateInstanceOf(node->id(),
                        node->token_pos(),
                        node->left(),
                        node->right()->AsTypeNode()->type(),
                        (node->kind() == Token::kISNOT));
     if (!IsResultNeeded(node)) {
       __ popl(EAX);  // Pop the result of the instanceof operation.
     }
     return;
   }
 
+  if (Token::IsTypeCastOperator(node->kind())) {
+    // This code generator is not maintained anymore.
+    UNIMPLEMENTED();
+  }
+
   node->right()->Visit(this);
   // Both left and right values on stack.
 
   // '===' and '!==' are not overloadable.
   if ((node->kind() == Token::kEQ_STRICT) ||
       (node->kind() == Token::kNE_STRICT)) {
     __ popl(EDX);  // Right operand.
     __ popl(EAX);  // Left operand.
     if (!IsResultNeeded(node)) {
       return;
@@ skipping 1059 matching lines @@
   const Error& error = Error::Handle(
       Parser::FormatError(script, token_pos, "Error", format, args));
   va_end(args);
   Isolate::Current()->long_jump_base()->Jump(1, error);
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32