[compiler] Remove compiler internals from CodeAssembler.

test/cctest/compiler/test-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 "src/isolate.h"
 #include "test/cctest/compiler/code-assembler-tester.h"
 #include "test/cctest/compiler/function-tester.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 typedef CodeAssemblerTesterImpl<CodeAssembler> CodeAssemblerTester;
 
 namespace {
 
 Node* SmiTag(CodeAssemblerTester& m, Node* value) {
   int32_t constant_value;
   if (m.ToInt32Constant(value, constant_value) &&
       Smi::IsValid(constant_value)) {
     return m.SmiConstant(Smi::FromInt(constant_value));
   }
-  return m.WordShl(value, m.SmiShiftBitsConstant());
+  return m.WordShl(value, m.IntPtrConstant(kSmiShiftSize + kSmiTagSize));
 }
 
 Node* UndefinedConstant(CodeAssemblerTester& m) {
   return m.LoadRoot(Heap::kUndefinedValueRootIndex);
 }
 
 Node* LoadObjectField(CodeAssemblerTester& m, Node* object, int offset,
                       MachineType rep = MachineType::AnyTagged()) {
   return m.Load(rep, object, m.IntPtrConstant(offset - kHeapObjectTag));
 }
@@ skipping 394 matching lines @@
     var_object.Bind(m.IntPtrConstant(66));
     m.Goto(&block1);
   }
   m.Bind(&block1);
   CHECK(!m.GenerateCode().is_null());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8