win32/testcompile.bat: Refactor, also test 64-bit

git-svn-id: http://svn.dsource.org/projects/bindings/trunk@427 e3080b08-b6e0-0310-b0a6-cbd5e3aa05fd
win32.basetsd: Disable HANDLE strong typing, as it breaks 64-bit compilation (see new testcompile.bat)

git-svn-id: http://svn.dsource.org/projects/bindings/trunk@428 e3080b08-b6e0-0310-b0a6-cbd5e3aa05fd