[turbofan] Move platform-independent bits of VisitTailCall to instruction-selector.cc

src/compiler/instruction-selector.h

Index: src/compiler/instruction-selector.h
diff --git a/src/compiler/instruction-selector.h b/src/compiler/instruction-selector.h
index 1288e9aa8953f3493ac7182e20bcabeced38cd38..237f8962ba54a7d1c802fe030054e24d2e5e37cf 100644
--- a/src/compiler/instruction-selector.h
+++ b/src/compiler/instruction-selector.h
@@ -172,6 +172,7 @@ class InstructionSelector final {
   void InitializeCallBuffer(Node* call, CallBuffer* buffer,
                             bool call_code_immediate,
                             bool call_address_immediate);
+  bool IsTailCallAddressImmediate();
 
   FrameStateDescriptor* GetFrameStateDescriptor(Node* node);