Move LookupResult into crankshaft as that's now the only place where it's still used

src/isolate.cc

 // Copyright 2012 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 <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/v8.h"
@@ skipping 65 matching lines @@
   js_entry_sp_ = NULL;
   external_callback_scope_ = NULL;
   current_vm_state_ = EXTERNAL;
   try_catch_handler_ = NULL;
   context_ = NULL;
   thread_id_ = ThreadId::Invalid();
   external_caught_exception_ = false;
   failed_access_check_callback_ = NULL;
   save_context_ = NULL;
   catcher_ = NULL;
-  top_lookup_result_ = NULL;
   promise_on_stack_ = NULL;
 
   // These members are re-initialized later after deserialization
   // is complete.
   pending_exception_ = NULL;
   has_pending_message_ = false;
   rethrowing_message_ = false;
   pending_message_obj_ = NULL;
   pending_message_script_ = NULL;
   scheduled_exception_ = NULL;
@@ skipping 103 matching lines @@
        block = block->next_) {
     v->VisitPointer(bit_cast<Object**>(&(block->exception_)));
     v->VisitPointer(bit_cast<Object**>(&(block->message_obj_)));
     v->VisitPointer(bit_cast<Object**>(&(block->message_script_)));
   }
 
   // Iterate over pointers on native execution stack.
   for (StackFrameIterator it(this, thread); !it.done(); it.Advance()) {
     it.frame()->Iterate(v);
   }
-
-  // Iterate pointers in live lookup results.
-  thread->top_lookup_result_->Iterate(v);
 }
 
 
 void Isolate::Iterate(ObjectVisitor* v) {
   ThreadLocalTop* current_t = thread_local_top();
   Iterate(v, current_t);
 }
 
 
 void Isolate::IterateDeferredHandles(ObjectVisitor* visitor) {
@@ skipping 2417 matching lines @@
   if (prev_ && prev_->Intercept(flag)) return true;
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 } }  // namespace v8::internal