use typedef'd type or original type?

[Doug Evans]

While working on 
http://sourceware.org/ml/gdb-patches/2008-01/msg00759.html
I came across this.

(gdb) l
1       typedef int myint;
2
3       myint x = 3;
4
5       int
6       main ()
7       {
8       }
[assumed stopped in main]
(gdb) whatis x
type = myint
(gdb) whatis -x
type = myint
(gdb) whatis +x
type = int

fyi, I made the patch change "whatis -x" print "int" instead of "myint" -
if myint was myshort the result should be int.