Start off release notes for clang 3.1 with reference to C11 anonymous structs and unions, and C++11 generalized constant expressions.
Start off release notes for clang 3.1 with reference to C11 anonymous structs
and unions, and C++11 generalized constant expressions.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@150640 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang