[turbofan] Add DebugBreak machine operator and support

src/compiler/code-assembler.cc

 // Copyright 2015 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/code-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 113 matching lines @@
 }
 
 Node* CodeAssembler::Parameter(int value) {
   return raw_assembler_->Parameter(value);
 }
 
 void CodeAssembler::Return(Node* value) {
   return raw_assembler_->Return(value);
 }
 
+void CodeAssembler::DebugBreak() { raw_assembler_->DebugBreak(); }
+
 void CodeAssembler::Bind(CodeAssembler::Label* label) { return label->Bind(); }
 
 Node* CodeAssembler::LoadFramePointer() {
   return raw_assembler_->LoadFramePointer();
 }
 
 Node* CodeAssembler::LoadParentFramePointer() {
   return raw_assembler_->LoadParentFramePointer();
 }
 
@@ skipping 555 matching lines @@
       }
     }
   }
 
   bound_ = true;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8