[turbofan] Hook up the shift code stubs with TurboFan.

src/compiler/code-generator.cc

 // Copyright 2013 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/address-map.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/pipeline.h"
@@ skipping 489 matching lines @@
       instr->reference_map(), Safepoint::kSimple, 0,
       needs_frame_state ? Safepoint::kLazyDeopt : Safepoint::kNoLazyDeopt);
 
   if (flags & CallDescriptor::kHasExceptionHandler) {
     InstructionOperandConverter i(this, instr);
     bool caught = flags & CallDescriptor::kHasLocalCatchHandler;
     RpoNumber handler_rpo = i.InputRpo(instr->InputCount() - 1);
     handlers_.push_back({caught, GetLabel(handler_rpo), masm()->pc_offset()});
   }
 
-  if (flags & CallDescriptor::kNeedsNopAfterCall) {
-    AddNopForSmiCodeInlining();
-  }
-
   if (needs_frame_state) {
     MarkLazyDeoptSite();
     // If the frame state is present, it starts at argument 1 (just after the
     // code address).
     size_t frame_state_offset = 1;
     FrameStateDescriptor* descriptor =
         GetFrameStateDescriptor(instr, frame_state_offset);
     int pc_offset = masm()->pc_offset();
     int deopt_state_id = BuildTranslation(instr, pc_offset, frame_state_offset,
                                           descriptor->state_combine());
@@ skipping 287 matching lines @@
     : frame_(gen->frame()), masm_(gen->masm()), next_(gen->ools_) {
   gen->ools_ = this;
 }
 
 
 OutOfLineCode::~OutOfLineCode() {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8