Implement fixpoint iteration for escape analysis.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 4936a16ca30c1f4bb74acff37a0b6bf2c90dc2b5..a8a6eccccf23eca0bcc4a69b5c6c19d6cff95c51 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -2344,6 +2344,12 @@ void HCapturedObject::ReplayEnvironment(HEnvironment* env) {
 }
 
 
+void HCapturedObject::PrintDataTo(StringStream* stream) {
+  stream->Add("#%d ", capture_id());
+  HDematerializedObject::PrintDataTo(stream);
+}
+
+
 void HEnterInlined::RegisterReturnTarget(HBasicBlock* return_target,
                                          Zone* zone) {
   ASSERT(return_target->IsInlineReturnTarget());