Created attachment 317733 [details]
foo.cc which reproduces the problem

Description of problem:

When C++ code includes typedefed unamed struct, typedefed type name
is not included in the object file.  It works fine if the struct
is named or compiled in C.  It was working fine with
g++ (GCC) 3.4.6 20060404 (Red Hat 3.4.6-3).

Version-Release number of selected component (if applicable):

g++ (GCC) 4.1.2 20071124 (Red Hat 4.1.2-42)

How reproducible:

always

Steps to Reproduce:
1. Compile the attached source:
   $ g++ -g -c foo.cc
2. Load the object into gdb
   $ gdb foo.o
3. Try to use the typedefed name "FooT"
   gdb> p sizeof(FooT)

  
Actual results:
No symbol "FooT" in current context.

Expected results:
$1 = 4

Additional info:

gdb> info types
All defined types:

File foo.cc:
._0;
typedef ._0;
typedef ::;
typedef int;
typedef int;

When compiled with gcc 3.4, it will show:
(gdb) info types
All defined types:

File foo.cc:
typedef ::;
FooT;
typedef FooT;
typedef int;