TStringBuilder.toString bug

Summary

Instead of method calling, the result of the function is accessed. Related to #41632 (closed)

Steps to reproduce

program Project1;
{$mode delphi}
uses
  SysUtils;

  function GetStr: string;
  var
    sb: TStringBuilder;
  begin
    sb := TStringBuilder.Create;
    try
      sb.Append('Hello, world');
      Result := sb.ToString(False);
    finally
      sb.Free;
    end;
  end;

begin
  WriteLn(GetStr());
  readln;
end.

Print nothing instead of 'Hello, world'

Possible fixes

 rtl/objpas/sysutils/syssb.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtl/objpas/sysutils/syssb.inc b/rtl/objpas/sysutils/syssb.inc
index b4f4c8d01a..56d4e4e49e 100644
--- a/rtl/objpas/sysutils/syssb.inc
+++ b/rtl/objpas/sysutils/syssb.inc
@@ -709,7 +709,7 @@ function TGenericStringBuilder.ToString(UpdateCapacity: Boolean): SBString;
 begin
   if (Length<>Capacity) and UpdateCapacity then
     SetCapacity(Length);
-  Result:=ToString;
+  Result:=ToString();
 end;