Liveness analysis for environment slots in Hydrogen

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index e1bb69eacd73fc5ac3f672abee2436ea973dc9a3..79e6a119dd710e8049d6af9619901aab2e96b8c8 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -699,6 +699,18 @@ LInstruction* LChunkBuilder::DoDummyUse(HDummyUse* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoEnvironmentBind(HEnvironmentBind* instr) {
+  UNREACHABLE();
+  return NULL;
+}
+
+
+LInstruction* LChunkBuilder::DoEnvironmentLookup(HEnvironmentLookup* instr) {
+  UNREACHABLE();
+  return NULL;
+}
+
+
 LInstruction* LChunkBuilder::DoSoftDeoptimize(HSoftDeoptimize* instr) {
   return AssignEnvironment(new(zone()) LDeoptimize);
 }