wincrtdbg test non-deterministically failing due to crash

_From [bruen...@google.com](https://code.google.com/u/109494838902877177630/) on October 28, 2011 13:40:03_

this has happened in runsuite but I then can't repro w/ manual ctest.
presumably an app crash, probably from the heap corruption in the test.

CMake Error at runtest.cmake:275 (message):

---

.././bin/drmemory.exe;-dr;e:/derek/dr/git/exports;-batch;-dr_ops;-dumpcore_mask
0x87fd -stderr_mask 15 -msgbox_mask
0;-callstack_style;0x27;-no_results_to_stderr;--;./wincrtdbg.exe failed
(Access violation):