Add PC descriptor for ret instruction

runtime/vm/opt_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/opt_code_generator.h"
 
 #include "vm/assembler_macros.h"
@@ skipping 3039 matching lines @@
     return;
   }
   ASSERT(!IsResultNeeded(node));
   ASSERT(node->value() != NULL);
   CodeGenInfo value_info(node->value());
   value_info.set_request_result_in_eax(true);
   node->value()->Visit(this);
   if (!value_info.result_returned_in_eax()) {
     __ popl(EAX);
   }
-  GenerateReturnEpilog();
+  GenerateReturnEpilog(node);
 }
 
 
 void OptimizingCodeGenerator::VisitSequenceNode(SequenceNode* node_sequence) {
   // TODO(srdjan): Allow limited forwarding of types across sequence nodes.
   classes_for_locals_->Clear();
   const intptr_t num_context_variables = (node_sequence->scope() != NULL) ?
       node_sequence->scope()->num_context_variables() : 0;
   if (FLAG_enable_type_checks || (num_context_variables > 0)) {
     CodeGenerator::VisitSequenceNode(node_sequence);
@@ skipping 75 matching lines @@
     }
   }
   // TODO(srdjan): Implement unary kSUB (negate) Mint.
   CodeGenerator::VisitUnaryOpNode(node);
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32