[debugger] fix step-next for tail calls.

src/full-codegen/full-codegen.h

Index: src/full-codegen/full-codegen.h
diff --git a/src/full-codegen/full-codegen.h b/src/full-codegen/full-codegen.h
index 16753088e4a397deae89918c86c2a4d7ee09ad1c..b41de6dbeda044192389f3859b7eb7cbe9910111 100644
--- a/src/full-codegen/full-codegen.h
+++ b/src/full-codegen/full-codegen.h
@@ -677,7 +677,8 @@ class FullCodeGenerator: public AstVisitor {
   // This is used in loop headers where we want to break for each iteration.
   void SetExpressionAsStatementPosition(Expression* expr);
 
-  void SetCallPosition(Expression* expr);
+  void SetCallPosition(Expression* expr,
+                       TailCallMode tail_call_mode = TailCallMode::kDisallow);
 
   void SetConstructCallPosition(Expression* expr) {
     // Currently call and construct calls are treated the same wrt debugging.