[Compiler] Move static FinishCode function into CodeGenerator.

src/compiler/s390/code-generator-s390.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-generator.h"
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 2684 matching lines @@
   if (pop->IsImmediate()) {
     DCHECK_EQ(Constant::kInt32, g.ToConstant(pop).type());
     pop_count += g.ToConstant(pop).ToInt32();
   } else {
     __ Drop(g.ToRegister(pop));
   }
   __ Drop(pop_count);
   __ Ret();
 }
 
+void CodeGenerator::FinishCode() {}
+
 void CodeGenerator::AssembleMove(InstructionOperand* source,
                                  InstructionOperand* destination) {
   S390OperandConverter g(this, nullptr);
   // Dispatch on the source and destination operand kinds.  Not all
   // combinations are possible.
   if (source->IsRegister()) {
     DCHECK(destination->IsRegister() || destination->IsStackSlot());
     Register src = g.ToRegister(source);
     if (destination->IsRegister()) {
       __ Move(g.ToRegister(destination), src);
@@ skipping 215 matching lines @@
       padding_size -= 2;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8