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

src/interpreter/interpreter.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/interpreter/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 86 matching lines @@
                                          OperandScale operand_scale,
                                          BytecodeGeneratorFunc generator) {
   if (!Bytecodes::BytecodeHasHandler(bytecode, operand_scale)) return;
 
   InterpreterDispatchDescriptor descriptor(isolate_);
   compiler::CodeAssemblerState state(
       isolate_, zone, descriptor, Code::ComputeFlags(Code::BYTECODE_HANDLER),
       Bytecodes::ToString(bytecode), Bytecodes::ReturnCount(bytecode));
   InterpreterAssembler assembler(&state, bytecode, operand_scale);
   (this->*generator)(&assembler);
-  // TODO(ishell): enable verification once all issues are fixed.
-  // Enable verification only in mksnapshot.
-  bool verify_graph = FLAG_csa_verify && FLAG_startup_blob != nullptr;
-  Handle<Code> code =
-      compiler::CodeAssembler::GenerateCode(&state, verify_graph);
+  Handle<Code> code = compiler::CodeAssembler::GenerateCode(&state);
   size_t index = GetDispatchTableIndex(bytecode, operand_scale);
   dispatch_table_[index] = code->entry();
   TraceCodegen(code);
   PROFILE(isolate_, CodeCreateEvent(
                         CodeEventListener::BYTECODE_HANDLER_TAG,
                         AbstractCode::cast(*code),
                         Bytecodes::ToString(bytecode, operand_scale).c_str()));
 }
 
 Code* Interpreter::GetBytecodeHandler(Bytecode bytecode,
@@ skipping 2738 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8