[asan] Update Windows test expectations for LLVM's MS demangler

After r375041 llvm-symbolizer uses it for demangling instead of
UnDecorateSymbolName. LLVM puts spaces after commas while Microsoft does
not.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@375147 91177308-0d34-0410-b5e6-96231b3b80d8