TableGen: Store Records on a BumpPtrAllocator

All these records are internalized and will live until exit.  This makes
them perfect candidates for a fast BumpPtrAllocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288613 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed