[turbofan] Remove obsolete JSDebugger operator.

src/compiler/verifier.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/compiler/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 528 matching lines @@
       break;
     }
 
     case IrOpcode::kJSCallConstruct:
       // Type is Receiver.
       CheckUpperIs(node, Type::Receiver());
       break;
     case IrOpcode::kJSCallFunction:
     case IrOpcode::kJSCallRuntime:
     case IrOpcode::kJSYield:
-    case IrOpcode::kJSDebugger:
       // Type can be anything.
       CheckUpperIs(node, Type::Any());
       break;
 
     case IrOpcode::kJSStackCheck:
       // Type is empty.
       CheckNotTyped(node);
       break;
 
     // Simplified operators
@@ skipping 517 matching lines @@
     // Check inputs for all nodes in the block.
     for (size_t i = 0; i < block->NodeCount(); i++) {
       Node* node = block->NodeAt(i);
       CheckInputsDominate(schedule, block, node, static_cast<int>(i) - 1);
     }
   }
 }
 }
 }
 }  // namespace v8::internal::compiler