enhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a

enhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a
separate side table, using the handy SequenceToOffsetTable class.  This encodes all
these weird things into another 256 bytes, allowing all intrinsics to be encoded this way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156995 91177308-0d34-0410-b5e6-96231b3b80d8