[Win32] Rework crash-report since r145389.

  - lib/Driver/Driver.cpp, tools/driver/driver.cpp: Exit status should not be propagated, although clang driver should catch exceptions.
  - test/Driver/crash-report.c: Add REQUIRES:shell for now.
    FIXME: setenv should work also on Lit.InternalShellRunner.
  - test/Driver/crash-report.c: Remove XFAIL.

Thanks to Chad, To point out the issue.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160343 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed