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 388f92f58f4a7e0ae705c4061db69842897c3c65..67a5087dec19efd1f164e40fed48976f069ecaf3 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -877,6 +877,7 @@ bool HInstruction::CanDeoptimize() {
     case HValue::kSar:
     case HValue::kSeqStringGetChar:
     case HValue::kStoreCodeEntry:
+    case HValue::kStoreFrameContext:
     case HValue::kStoreKeyed:
     case HValue::kStoreNamedField:
     case HValue::kStoreNamedGeneric:
@@ -889,6 +890,7 @@ bool HInstruction::CanDeoptimize() {
       return false;
 
     case HValue::kAdd:
+    case HValue::kAllocateBlockContext:
     case HValue::kApplyArguments:
     case HValue::kBitwise:
     case HValue::kBoundsCheck:
@@ -1164,6 +1166,13 @@ 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;