Fix reintroduction of global variables that have been deleted.

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 03bee01cc52c74e1d63fd606d9e42d991ca27be3..26bcd20d8ac18dc37a2b52569c7a38938a1ff062 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1602,7 +1602,10 @@ LInstruction* LChunkBuilder::DoLoadGlobal(HLoadGlobal* instr) {
 
 
 LInstruction* LChunkBuilder::DoStoreGlobal(HStoreGlobal* instr) {
-  return new LStoreGlobal(UseRegisterAtStart(instr->value()));
+  LOperand* temp = TempRegister();
+  LOperand* value = UseRegister(instr->value());
+  LStoreGlobal* result = new LStoreGlobal(value, temp);
+  return AssignEnvironment(result);
 }