Externalize deoptimization reasons.

src/lithium-codegen.cc

Index: src/lithium-codegen.cc
diff --git a/src/lithium-codegen.cc b/src/lithium-codegen.cc
index 3ca47e1e8da75c6556f0d54e6c649a7ada190ce9..412b00e3474dd3662d74c789713b1a3c75c01559 100644
--- a/src/lithium-codegen.cc
+++ b/src/lithium-codegen.cc
@@ -152,12 +152,17 @@ void LCodeGenBase::Comment(const char* format, ...) {
 }
 
 
+void LCodeGenBase::Comment(bool force, const char* string) {
+  size_t length = strlen(string);
+  Vector<char> copy = Vector<char>::New(static_cast<int>(length) + 1);
+  MemCopy(copy.start(), string, copy.length());
+  masm()->RecordComment(copy.start(), force);
+}
+
+
 void LCodeGenBase::DeoptComment(const Deoptimizer::Reason& reason) {
-  std::ostringstream os;
-  os << ";;; deoptimize at " << HSourcePosition(reason.raw_position) << " "
-     << reason.mnemonic;
-  if (reason.detail != NULL) os << ": " << reason.detail;
-  Comment("%s", os.str().c_str());
+  masm()->RecordDeoptReason(*reinterpret_cast<const int*>(&reason.deopt_reason),
+                            reason.raw_position);
 }