Thread/Isolate refactoring: new(Isolate) -> new(Zone)

runtime/vm/flow_graph_type_propagator.cc

Index: runtime/vm/flow_graph_type_propagator.cc
===================================================================
--- runtime/vm/flow_graph_type_propagator.cc	(revision 44266)
+++ runtime/vm/flow_graph_type_propagator.cc	(working copy)
@@ -410,13 +410,13 @@
   Instruction* check_clone = NULL;
   if (check->IsCheckSmi()) {
     check_clone =
-        new CheckSmiInstr(assert->value()->Copy(isolate()),
+        new CheckSmiInstr(assert->value()->Copy(zone()),
                           assert->env()->deopt_id(),
                           check->token_pos());
   } else {
     ASSERT(check->IsCheckClass());
     check_clone =
-        new CheckClassInstr(assert->value()->Copy(isolate()),
+        new CheckClassInstr(assert->value()->Copy(zone()),
                             assert->env()->deopt_id(),
                             check->AsCheckClass()->unary_checks(),
                             check->token_pos());
@@ -424,7 +424,7 @@
   ASSERT(check_clone != NULL);
   ASSERT(assert->deopt_id() == assert->env()->deopt_id());
   check_clone->InsertBefore(assert);
-  assert->env()->DeepCopyTo(isolate(), check_clone);
+  assert->env()->DeepCopyTo(zone(), check_clone);
 
   (*asserts_)[defn->ssa_temp_index()] = kStrengthenedAssertMarker;
 }