Better typing and type verification

src/compiler/pipeline.h

 // 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.
 
 #ifndef V8_COMPILER_PIPELINE_H_
 #define V8_COMPILER_PIPELINE_H_
 
 #include <fstream>  // NOLINT(readability/streams)
 
 #include "src/v8.h"
@@ skipping 40 matching lines @@
   Isolate* isolate() { return info_->isolate(); }
   Zone* zone() { return info_->zone(); }
 
   Schedule* ComputeSchedule(Graph* graph);
   void OpenTurboCfgFile(std::ofstream* stream);
   void PrintCompilationStart();
   void PrintScheduleAndInstructions(const char* phase, const Schedule* schedule,
                                     const SourcePositionTable* positions,
                                     const InstructionSequence* instructions);
   void PrintAllocator(const char* phase, const RegisterAllocator* allocator);
-  void VerifyAndPrintGraph(Graph* graph, const char* phase);
+  void VerifyAndPrintGraph(Graph* graph, const char* phase,
+                           bool untyped = false);
   Handle<Code> GenerateCode(Linkage* linkage, Graph* graph, Schedule* schedule,
                             SourcePositionTable* source_positions);
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_PIPELINE_H_