[turbofan] Modifies the --turbo-verify-machine-graph flag to act as a filter.

test/unittests/interpreter/interpreter-assembler-unittest.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 "test/unittests/interpreter/interpreter-assembler-unittest.h"
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
 #include "src/interface-descriptors.h"
@@ skipping 317 matching lines @@
                 next_bytecode_offset_matcher, after_lookahead_offset, _);
       Matcher<Node*> after_lookahead_bytecode =
           m.IsLoad(MachineType::Uint8(),
                    IsParameter(InterpreterDispatchDescriptor::kBytecodeArray),
                    after_lookahead_offset);
       if (kPointerSize == 8) {
         after_lookahead_bytecode =
             IsChangeUint32ToUint64(after_lookahead_bytecode);
       }
       target_bytecode_matcher =
-          IsPhi(MachineRepresentation::kWord8, target_bytecode_matcher,
+          IsPhi(MachineType::PointerRepresentation(), target_bytecode_matcher,
                 after_lookahead_bytecode, _);
       code_target_matcher =
           m.IsLoad(MachineType::Pointer(),
                    IsParameter(InterpreterDispatchDescriptor::kDispatchTable),
                    IsWordShl(target_bytecode_matcher,
                              IsIntPtrConstant(kPointerSizeLog2)));
     }
 
     EXPECT_THAT(
         tail_call_node,
@@ skipping 368 matching lines @@
     EXPECT_THAT(feedback_vector,
                 m.IsLoad(MachineType::AnyTagged(), load_literals_matcher,
                          IsIntPtrConstant(LiteralsArray::kFeedbackVectorOffset -
                                           kHeapObjectTag)));
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8