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

src/compiler/code-generator.cc

Index: src/compiler/code-generator.cc
diff --git a/src/compiler/code-generator.cc b/src/compiler/code-generator.cc
index e5e2bccda6cd8596c8dda10ca2b93a82600bb069..df96d89216400c52fc6a4214f68643381da95ec2 100644
--- a/src/compiler/code-generator.cc
+++ b/src/compiler/code-generator.cc
@@ -507,10 +507,6 @@ void CodeGenerator::RecordCallPosition(Instruction* instr) {
     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