[stubs] Enable machine graph verification for CodeStubAssembler and friends by default in debug mode

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_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/globals.h"
@@ skipping 31 matching lines @@
       SourcePositionTable* source_positions,
       ZoneVector<trap_handler::ProtectedInstructionData>*
           protected_instructions);
 
   // Run the pipeline on a machine graph and generate code. The {schedule} must
   // be valid, hence the given {graph} does not need to be schedulable.
   static Handle<Code> GenerateCodeForCodeStub(Isolate* isolate,
                                               CallDescriptor* call_descriptor,
                                               Graph* graph, Schedule* schedule,
                                               Code::Flags flags,
-                                              const char* debug_name,
-                                              bool verify_graph);
+                                              const char* debug_name);
 
   // Run the entire pipeline and generate a handle to a code object suitable for
   // testing.
   static Handle<Code> GenerateCodeForTesting(CompilationInfo* info);
 
   // Run the pipeline on a machine graph and generate code. If {schedule} is
   // {nullptr}, then compute a new schedule for code generation.
   static Handle<Code> GenerateCodeForTesting(CompilationInfo* info,
                                              Graph* graph,
                                              Schedule* schedule = nullptr);
@@ skipping 12 matching lines @@
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(Pipeline);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_PIPELINE_H_