[Interpreter] Make InterpreterAssembler a subclass of CodeStubAssembler.

test/unittests/compiler/interpreter-assembler-unittest.h

-// 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.
-
-#ifndef V8_UNITTESTS_COMPILER_INTERPRETER_ASSEMBLER_UNITTEST_H_
-#define V8_UNITTESTS_COMPILER_INTERPRETER_ASSEMBLER_UNITTEST_H_
-
-#include "src/compiler/interpreter-assembler.h"
-#include "src/compiler/linkage.h"
-#include "src/compiler/machine-operator.h"
-#include "test/unittests/test-utils.h"
-#include "testing/gmock-support.h"
-
-namespace v8 {
-namespace internal {
-namespace compiler {
-
-using ::testing::Matcher;
-
-class InterpreterAssemblerTest : public TestWithIsolateAndZone {
- public:
-  InterpreterAssemblerTest() {}
-  ~InterpreterAssemblerTest() override {}
-
-  class InterpreterAssemblerForTest final : public InterpreterAssembler {
-   public:
-    InterpreterAssemblerForTest(InterpreterAssemblerTest* test,
-                                interpreter::Bytecode bytecode)
-        : InterpreterAssembler(test->isolate(), test->zone(), bytecode) {}
-    ~InterpreterAssemblerForTest() override {}
-
-    Matcher<Node*> IsLoad(const Matcher<LoadRepresentation>& rep_matcher,
-                          const Matcher<Node*>& base_matcher,
-                          const Matcher<Node*>& index_matcher);
-    Matcher<Node*> IsStore(const Matcher<StoreRepresentation>& rep_matcher,
-                           const Matcher<Node*>& base_matcher,
-                           const Matcher<Node*>& index_matcher,
-                           const Matcher<Node*>& value_matcher);
-
-    Matcher<Node*> IsBytecodeOperand(int offset);
-    Matcher<Node*> IsBytecodeOperandSignExtended(int offset);
-    Matcher<Node*> IsBytecodeOperandShort(int offset);
-    Matcher<Node*> IsBytecodeOperandShortSignExtended(int offset);
-
-    using InterpreterAssembler::call_descriptor;
-    using InterpreterAssembler::graph;
-
-   private:
-    DISALLOW_COPY_AND_ASSIGN(InterpreterAssemblerForTest);
-  };
-};
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_UNITTESTS_COMPILER_INTERPRETER_ASSEMBLER_UNITTEST_H_