Address clang warning: declaration shadows a field of 'HudGaugeRadarDradis' [-Wshadow]

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@10897 387891d4-d844-0410-90c0-e4c51a9137d3
Address clang warning: unused variable

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@10898 387891d4-d844-0410-90c0-e4c51a9137d3
Address clang warning: commas at the end of enumerator lists are a C++11 extension

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@10899 387891d4-d844-0410-90c0-e4c51a9137d3