[Bug c++/49107] [C++0x][4.7 Regression] incomplete type regression with std::pair

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49107

--- Comment #7 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-25 12:16:45 UTC ---
To be honest, the behavior vs the original testcase, which just uses pair, can
be considered a regression; the reduced one, in Comment #5, fails also with
4.6.