[turbofan] commit allocated registers early

src/compiler/register-allocator.h

Index: src/compiler/register-allocator.h
diff --git a/src/compiler/register-allocator.h b/src/compiler/register-allocator.h
index 2db5189ee16a7062ff6c1419d59ede92838b55fd..3ed9860995635eb9a53e8ebc820c8999f902a5cb 100644
--- a/src/compiler/register-allocator.h
+++ b/src/compiler/register-allocator.h
@@ -196,7 +196,7 @@ class LiveRange FINAL : public ZoneObject {
   InstructionOperand* CreateAssignedOperand(Zone* zone) const;
   int assigned_register() const { return assigned_register_; }
   int spill_start_index() const { return spill_start_index_; }
-  void set_assigned_register(int reg);
+  void set_assigned_register(int reg, Zone* zone);
   void MakeSpilled();
   bool is_phi() const { return is_phi_; }
   void set_is_phi(bool is_phi) { is_phi_ = is_phi; }