switch a bunch of ASTReader to use the new BitstreamCursor::advance* methods, which hide a bunch of private details of the cursor from clients and simplify their code.  More to come.
switch a bunch of ASTReader to use the new BitstreamCursor::advance* methods,
which hide a bunch of private details of the cursor from clients and simplify
their code.  More to come.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@172922 91177308-0d34-0410-b5e6-96231b3b80d8

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