clang-cc: Move InitializeLangOptions to Options.cpp.

Also, inline InitializeLanguageStandard into InitializeLangOptions; this code
needs to be refactored but the current division doesn't make any sense.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86816 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed