RSRP-288303: File Structure Window on open should indicate current caret location

Imagine a project with multiple godfiles (1000's of lines/file).

It would be ultra-convenient if when opening File Structure window for the first time for a file: if the file has a member/members selected or the caret is at a member; that member/members would also be selected in the File Structure window. Also it would be convenient, if no member is selected in the file, at least have the File Structure window's selector between the 2 nearest members in the file.

class Hello 
{
   int Memb|er0;// | indicates cursor
   int Member1;
   int Member2;
}

--> Member0 selected in File Structure window

class Hello 
{
   [int Member0];// [] indicates selection
   int Member1;
   int Member2;
}

--> Member0 selected in File Structure window

class Hello 
{
   [int Member0;// [] indicates selection
   int Member1;]
   int Member2;
}

--> Member0, Member1 selected in File Structure window

class Hello 
{// | indicates cursor
   int Member0;   
   int Member1;
            |
   int Member2;   
}

--> Selector between Member1 and Member2 in File Structure window