Preliminary support for block contexts in hydrogen.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 1a376b1541da05b3e08aad33df0cbee0af7a0d62..3add0067958cc892dceb520330bb4b91e94d7671 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -846,6 +846,7 @@ bool HInstruction::CanDeoptimize() {
     case HValue::kReturn:
     case HValue::kSeqStringGetChar:
     case HValue::kStoreCodeEntry:
+    case HValue::kStoreFrameContext:
     case HValue::kStoreKeyed:
     case HValue::kStoreNamedField:
     case HValue::kStoreNamedGeneric:
@@ -858,6 +859,7 @@ bool HInstruction::CanDeoptimize() {
       return false;
 
     case HValue::kAdd:
+    case HValue::kAllocateBlockContext:
     case HValue::kApplyArguments:
     case HValue::kBitwise:
     case HValue::kBoundsCheck:
@@ -1136,6 +1138,13 @@ void HAccessArgumentsAt::PrintDataTo(StringStream* stream) {
 }
 
 
+void HAllocateBlockContext::PrintDataTo(StringStream* stream) {
+  context()->PrintNameTo(stream);
+  stream->Add(" ");
+  function()->PrintNameTo(stream);
+}
+
+
 void HControlInstruction::PrintDataTo(StringStream* stream) {
   stream->Add(" goto (");
   bool first_block = true;