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 07e78f3368e251ea89cd57d81d6045a8e873f4b7..5730623ceffe8105ce677dbfa4d73e0ed2221a02 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -2321,6 +2321,12 @@ 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());