fs: check for symlink support in fs-promises test
Attempting to make symlinks as a non-administrator user in Windows causes a permission error. We need to update test-fs-promises to expect this error case, as is already done in various other tests.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
- fs