-fseh-exceptions is only meaningful for MinGW targets, and that driver
already has logic to pass either -fdwarf-exceptions or -fseh-exceptions
as appropriate. -fseh-exceptions is just a no-op for MSVC triples, and
passing it to cc1 causes unnecessary confusion.
Differential Revision: https://reviews.llvm.org/D47850
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@334145 91177308-0d34-0410-b5e6-96231b3b80d8
Shoaib Meenai