[turbofan] Readjust has_slot_use after splintering

src/compiler/register-allocator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/base/adapters.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/register-allocator.h"
 #include "src/string-stream.h"
 
 namespace v8 {
@@ skipping 1023 matching lines @@
 
       first->next_ = second;
       first = temp;
       continue;
     }
     DCHECK(first->End() <= second->Start());
   }
 
   TopLevel()->UpdateParentForAllChildren(TopLevel());
   TopLevel()->UpdateSpillRangePostMerge(other);
+  TopLevel()->set_has_slot_use(TopLevel()->has_slot_use() ||
+                               other->has_slot_use());
 
 #if DEBUG
   Verify();
 #endif
 }
 
 
 void TopLevelLiveRange::VerifyChildrenInOrder() const {
   LifetimePosition last_end = End();
   for (const LiveRange* child = this->next(); child != nullptr;
@@ skipping 2567 matching lines @@
         }
       }
     }
   }
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8