IRgen: Change CGBitFieldInfo to take the AccessInfo as constructor arguments, it is now an immutable object.

Also, add some checking of various invariants that should hold on the CGBitFieldInfo access.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101345 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed