[windows] [asan] Add wholearchive flag when including asan_cxx lib.
We need -wholearchive for asan_cxx, the same than for asan.
Clang Driver will add asan_cxx at the beginning of the arg list that we pass to
the linker. To ensure that all the static libraries are linked to asan_cxx, we
force the linker to include the object files in asan_cxx.
This fixes some linker errors when compiling with address sanitizer for MT and
passing the static library libFuzzer.
Differential Revision: https://reviews.llvm.org/D29754
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294604
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