The comment in _create_symlink is incorrect. The return value of
CreateSymbolicLink is as documented, it was just declared with
the wrong return type. The actual return type is BOOLEAN, not BOOL.
Fixing this allows us to simplify the code a bit.
Change-Id: I4d2190a50d45ba41dd9814bf7079a5784fc0a366
Replace all calls to os.symlink with platform_utils.symlink.
The Windows implementation calls into the CreateSymbolicLinkW Win32
API, as os.symlink is not supported.
Separate the Win32 API definitions into a separate module
platform_utils_win32 for clarity.
Change-Id: I0714c598664c2df93383734e609d948692c17ec5
