[Bug default/21843] libabigail not correctly keeping track of nested scopes for typedefs

["woodard at redhat dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21843

--- Comment #10 from Ben Woodard <woodard at redhat dot com> ---
Moving to a slightly bigger test case that doesn't resolve to harmless.
Using --no-unreferenced-symbols reduces some of the noise.

dodji@adjoa:gcc-llvm$ ../../build/tools/abidiff test3-gcc.o test3-clang.o
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 1 Changed, 0 Added variable
Function symbols changes summary: 11 Removed, 1 Added function symbols not
referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not
referenced by debug info

1 Changed variable:

  [C]'std::vector<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > > > var' was changed to
'std::vector<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > > var' at test3.C:4:1:
    type of variable changed:
     type name changed from 'std::vector<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > >' to 'std::vector<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > >'
     type size hasn't changed

     1 base class deletion:
       struct std::_Vector_base<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > > at stl_vector.h:74:1
     1 base class insertion:
       struct std::_Vector_base<std::__cxx11::basic_string<char>,
std::allocator<std::__cxx11::basic_string<char> > > at stl_vector.h:74:1


11 Removed function symbols not referenced by debug info:

 
_ZN9__gnu_cxx13new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC1Ev
 
_ZN9__gnu_cxx13new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED1Ev
  _ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC1Ev
  _ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED1Ev
 
_ZNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12_Vector_implC1Ev
 
_ZNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12_Vector_implD1Ev
 
_ZNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC1Ev
 
_ZNSt12_Vector_baseINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED1Ev
 
_ZNSt16allocator_traitsISaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE10deallocateERS6_PS5_m
  _ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC1Ev
  _ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED1Ev

1 Added function symbol not referenced by debug info:

 
_ZN9__gnu_cxx14__alloc_traitsISaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEE10deallocateERS7_PS6_m

dodji@adjoa:gcc-llvm$

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