[stubs] Ensure CSA_ASSERT and CSA_SLOW_ASSERT do not produce unused instructions in release mode.

test/cctest/test-code-stub-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/base/utils/random-number-generator.h"
 #include "src/code-factory.h"
 #include "src/code-stub-assembler.h"
 #include "src/compiler/node.h"
 #include "src/ic/stub-cache.h"
 #include "src/isolate.h"
@@ skipping 1907 matching lines @@
 }
 
 TEST(Arguments) {
   Isolate* isolate(CcTest::InitIsolateOnce());
 
   const int kNumParams = 4;
   CodeStubAssemblerTester m(isolate, kNumParams);
 
   CodeStubArguments arguments(&m, m.IntPtrConstant(3));
 
-  m.Assert(m.WordEqual(arguments.AtIndex(0), m.SmiConstant(Smi::FromInt(12))));
-  m.Assert(m.WordEqual(arguments.AtIndex(1), m.SmiConstant(Smi::FromInt(13))));
-  m.Assert(m.WordEqual(arguments.AtIndex(2), m.SmiConstant(Smi::FromInt(14))));
+  CSA_ASSERT(
+      &m, m.WordEqual(arguments.AtIndex(0), m.SmiConstant(Smi::FromInt(12))));
+  CSA_ASSERT(
+      &m, m.WordEqual(arguments.AtIndex(1), m.SmiConstant(Smi::FromInt(13))));
+  CSA_ASSERT(
+      &m, m.WordEqual(arguments.AtIndex(2), m.SmiConstant(Smi::FromInt(14))));
 
   m.Return(arguments.GetReceiver());
 
   Handle<Code> code = m.GenerateCode();
   CHECK(!code.is_null());
 
   FunctionTester ft(code, kNumParams);
   Handle<Object> result = ft.Call(isolate->factory()->undefined_value(),
                                   Handle<Smi>(Smi::FromInt(12), isolate),
                                   Handle<Smi>(Smi::FromInt(13), isolate),
@@ skipping 29 matching lines @@
   Handle<Object> result = ft.Call(isolate->factory()->undefined_value(),
                                   Handle<Smi>(Smi::FromInt(12), isolate),
                                   Handle<Smi>(Smi::FromInt(13), isolate),
                                   Handle<Smi>(Smi::FromInt(14), isolate))
                               .ToHandleChecked();
   CHECK_EQ(Smi::FromInt(12 + 13 + 14), *result);
 }
 
 }  // namespace internal
 }  // namespace v8