Fix PathMappingList tests on windows

The tests added in r332842 don't work on windows, because they do path
comparisons on strings, and on windows, the paths coming out of the
mappings had backslashes in them.

This switches comparisons to FileSpecs, so the results come out right.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@333074 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed