[turbofan] Robustify tail parameter stack size computations

src/compiler/linkage.h

 // Copyright 2014 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.
 
 #ifndef V8_COMPILER_LINKAGE_H_
 #define V8_COMPILER_LINKAGE_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/frame.h"
 #include "src/compiler/operator.h"
@@ skipping 272 matching lines @@
 
   // Get the callee-saved FP registers, if any, across this call.
   RegList CalleeSavedFPRegisters() const { return callee_saved_fp_registers_; }
 
   const char* debug_name() const { return debug_name_; }
 
   bool UsesOnlyRegisters() const;
 
   bool HasSameReturnLocationsAs(const CallDescriptor* other) const;
 
-  bool CanTailCall(const Node* call, int* stack_param_delta) const;
+  int GetStackParameterDelta(const CallDescriptor* tail_caller = nullptr) const;
+
+  bool CanTailCall(const Node* call) const;
 
  private:
   friend class Linkage;
 
   const Kind kind_;
   const MachineType target_type_;
   const LinkageLocation target_loc_;
   const LocationSignature* const location_sig_;
   const size_t stack_param_count_;
   const Operator::Properties properties_;
@@ skipping 119 matching lines @@
   CallDescriptor* const incoming_;
 
   DISALLOW_COPY_AND_ASSIGN(Linkage);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_LINKAGE_H_