Bug 1076698 - Part 0: Clean up configure.in's list of gcc/clang warnings. r=ted
Bug 1076698 - Part 1: Remove unnecessary MOZ_*_SUPPORTS_WARNING checks for warnings supported by gcc 4.4+ and clang. r=ted
Bug 1076698 - Part 2: Treat some individual gcc/clang warnings as errors in all directories. r=ted