Both HGlobalObject and HGlobalReceiver can be replaced with HLoadNamedField.

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 ad790b72ff539d8f933af208caadc0f80778fc12..2de0fa138f5da9c088a813759c4b4a62ab917a28 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1048,18 +1048,6 @@ LInstruction* LChunkBuilder::DoDeclareGlobals(HDeclareGlobals* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoGlobalObject(HGlobalObject* instr) {
-  LOperand* context = UseRegisterAtStart(instr->value());
-  return DefineAsRegister(new(zone()) LGlobalObject(context));
-}
-
-
-LInstruction* LChunkBuilder::DoGlobalReceiver(HGlobalReceiver* instr) {
-  LOperand* global_object = UseRegisterAtStart(instr->value());
-  return DefineAsRegister(new(zone()) LGlobalReceiver(global_object));
-}
-
-
 LInstruction* LChunkBuilder::DoCallJSFunction(
     HCallJSFunction* instr) {
   LOperand* function = UseFixed(instr->function(), r1);