Generate a custom OSR entrypoint for OSR compiles on all platforms, and transition to optimized cod…

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 76d6614d418569fdb84b3fda0c4de43a6f6a3b0b..642e79b9e0de8589f6a0003f8431a346a04a75d6 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -991,6 +991,15 @@ void HNumericConstraint::PrintDataTo(StringStream* stream) {
 }
 
 
+void HUnknownOSRValue::PrintDataTo(StringStream *stream) {
+  const char* type = "expression";
+  if (environment_->is_local_index(index_)) type = "local";
+  if (environment_->is_special_index(index_)) type = "special";
+  if (environment_->is_parameter_index(index_)) type = "parameter";
+  stream->Add("%s @ %d", type, index_);
+}
+
+
 HInductionVariableAnnotation* HInductionVariableAnnotation::AddToGraph(
     HPhi* phi,
     NumericRelation relation,