[Bug testsuite/98566] g++.dg/warn/Wmismatched-dealloc.C fails with -std=c++11

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98566

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
C++ tests aren't run in C++11 mode unless specified by GXX_TESTSUITE_STDS (to
alleviate testing times).