Inappropriate use of QSKIP in QVarLengthArray autotest

In tests/auto/corelib/tools/qvarlengtharray/tst_qvarlengtharray.cpp, the last block of the oldTests() test function is disabled with:

QSKIP("This test causes the machine to crash when allocating too much memory.");

This is not an appropriate use of QSKIP, because it means that the tests previously executed in this function are never reported as a pass. If this block is never useful, it should be removed, otherwise the test should be fixed and the QSKIP removed.

On linux, if the QSKIP is removed the test causes std::bad_alloc to be thrown. Perhaps the test should catch this exception.