[compiler] Add instrumentation for tracking down Node::New crashes.

src/compiler/effect-control-linearizer.h

 // Copyright 2016 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.
 
 #ifndef V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_
 #define V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-assembler.h"
 #include "src/compiler/node.h"
@@ skipping 137 matching lines @@
   MachineOperatorBuilder* machine() const;
 
   GraphAssembler* gasm() { return &graph_assembler_; }
 
   JSGraph* js_graph_;
   Schedule* schedule_;
   Zone* temp_zone_;
   RegionObservability region_observability_ = RegionObservability::kObservable;
   SourcePositionTable* source_positions_;
   GraphAssembler graph_assembler_;
+  Node* frame_state_zapper_;  // For tracking down compiler::Node::New crashes.
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_EFFECT_CONTROL_LINEARIZER_H_