[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 #10 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-06-04 06:57:59 UTC ---
Thanks Jason, seems a nasty issue. I'm trying to understand how the specific
testcase in Comment #4 fits in the picture, ie why it compiles only because I
commented out that VectorH3 constructor which seems unrelated?!?