X87: [runtime] TailCallRuntime and CallRuntime should use default argument counts specified in runt…

src/x87/macro-assembler-x87.h

Index: src/x87/macro-assembler-x87.h
diff --git a/src/x87/macro-assembler-x87.h b/src/x87/macro-assembler-x87.h
index 0909f268e1e8deb6d89ae2a13a5be83201cdfb90..8bbfb61fe5be6c6d3626f7345171178453a29f6d 100644
--- a/src/x87/macro-assembler-x87.h
+++ b/src/x87/macro-assembler-x87.h
@@ -660,28 +660,29 @@ class MacroAssembler: public Assembler {
   // Call a runtime routine.
   void CallRuntime(const Runtime::Function* f, int num_arguments,
                    SaveFPRegsMode save_doubles = kDontSaveFPRegs);
-  void CallRuntimeSaveDoubles(Runtime::FunctionId id) {
-    const Runtime::Function* function = Runtime::FunctionForId(id);
+  void CallRuntimeSaveDoubles(Runtime::FunctionId fid) {
+    const Runtime::Function* function = Runtime::FunctionForId(fid);
     CallRuntime(function, function->nargs, kSaveFPRegs);
   }
 
   // Convenience function: Same as above, but takes the fid instead.
-  void CallRuntime(Runtime::FunctionId id, int num_arguments,
+  void CallRuntime(Runtime::FunctionId fid,
                    SaveFPRegsMode save_doubles = kDontSaveFPRegs) {
-    CallRuntime(Runtime::FunctionForId(id), num_arguments, save_doubles);
+    const Runtime::Function* function = Runtime::FunctionForId(fid);
+    CallRuntime(function, function->nargs, save_doubles);
+  }
+
+  // Convenience function: Same as above, but takes the fid instead.
+  void CallRuntime(Runtime::FunctionId fid, int num_arguments,
+                   SaveFPRegsMode save_doubles = kDontSaveFPRegs) {
+    CallRuntime(Runtime::FunctionForId(fid), num_arguments, save_doubles);
   }
 
   // Convenience function: call an external reference.
   void CallExternalReference(ExternalReference ref, int num_arguments);
 
-  // Tail call of a runtime routine (jump).
-  // Like JumpToExternalReference, but also takes care of passing the number
-  // of parameters.
-  void TailCallExternalReference(const ExternalReference& ext,
-                                 int num_arguments);
-
   // Convenience function: tail call a runtime routine (jump).
-  void TailCallRuntime(Runtime::FunctionId fid, int num_arguments);
+  void TailCallRuntime(Runtime::FunctionId fid);
 
   // Before calling a C-function from generated code, align arguments on stack.
   // After aligning the frame, arguments must be stored in esp[0], esp[4],