In the Windows JavaHL build use a different set of lint flags when compiling
legacy 'org/tigris' legacy code than when we compile the new code.

* build/generator/gen_win.py
  (get_proj_sources): Suppress some warnings just for compat code and compat
    tests.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1544258 13f79535-47bb-0310-9956-ffa450edef68