We can't return the unicode string size, this returns sizes to small
for multi-byte characters.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54295
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v10: userenv: Fix GetProfilesDirectoryA return value
kernel32: Rework ExpandEnvironmentStringsA to return ansi size and fix corner cases.
kernel32: Rework ExpandEnvironmentStringsW error handling.
ntdll: Rework RtlExpandEnvironmentStrings/_U to account for corner cases.
kernel32: Add ExpandEnvironmentStringsA tests for japanese.
kernel32: Add more tests for ExpandEnvironmentStringsA.
kernel32: Add tests for ExpandEnvironmentStringsW.
ntdll: Add more tests for RtlExpandEnvironmentStrings/_U.
userenv: Add another test for GetProfilesDirectoryA
https://gitlab.winehq.org/wine/wine/-/merge_requests/4045