Progress towards making Zones independent of Isolates and Threads.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 77e5300a5b07611ff542c8fa5f76efaf44103e72..cbbc915f5532e70835de6bcc57624bb219b484d5 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -523,14 +523,15 @@ void LCodeGen::RegisterEnvironmentForDeoptimization(LEnvironment* environment,
         ++jsframe_count;
       }
     }
-    Translation translation(&translations_, frame_count, jsframe_count);
+    Translation translation(&translations_, frame_count, jsframe_count,
+                            environment->zone());
     WriteTranslation(environment, &translation);
     int deoptimization_index = deoptimizations_.length();
     int pc_offset = masm()->pc_offset();
     environment->Register(deoptimization_index,
                           translation.index(),
                           (mode == Safepoint::kLazyDeopt) ? pc_offset : -1);
-    deoptimizations_.Add(environment);
+    deoptimizations_.Add(environment, environment->zone());
   }
 }
 
@@ -644,7 +645,7 @@ void LCodeGen::RecordSafepoint(
   for (int i = 0; i < operands->length(); i++) {
     LOperand* pointer = operands->at(i);
     if (pointer->IsStackSlot()) {
-      safepoint.DefinePointerSlot(pointer->index());
+      safepoint.DefinePointerSlot(pointer->index(), zone());
     } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) {
       safepoint.DefinePointerRegister(ToRegister(pointer));
     }