update debug checks

[François Dumont <francois dot cppdevs at free dot fr>]

Hi

    This is a patch to make debug checks recently introduced more 
consistent with the way tests are written. cont_traits.h and 
debug_cont_traits.h have all been removed.

    I also use as announced the dg-require-debug-mode Deja GNU 
attribute to have the tests considered as not supported when debug mode 
is not activated. However I had to patch this attribute to make it works 
similarly to the other dg-require-* attributes. I have done it with the 
minimal modifications, it always try to compile a simple translation 
unit and check the result of the compilation. Maybe we could simply 
parse cxxflags content but I am not very familar with the language used 
in the .exp file (TCL ?)

2010-09-02  François Dumont <francois.cppdevs@free.fr>

        * testsuite/lib/libstdc++.exp: Fix check_v3_target_debug_mode so
        that it really detects when debug mode is activated
        * testsuite/util/debug/construct_neg.h, insert_neg.h, assign_neg.h:
        Removed and content moved...
        * testsuite/util/debug/checks.h: ... here. Checks modified to take
        the type of the container to test rather than an intermediate 
container
        type traits helper.
        * testsuite/23_containers/*/debug/cont_traits.h, 
debug_cont_traits.h:
        Removed
        * testsuite/23_containers/*/debug/assign?_neg.h, construct?_neg.h,
        insert?_neg.h: Updated to use dg-require-debug-mode when necessary
        and use new check functions.

Regards

Attachment: debug_checks.patch
Description: Text document