Rafael Espindola 8e2ed1643a Bring in a BumpPtrStringSaver from lld and simplify the interface. ...

StringSaver now always saves to a BumpPtrAllocator.

The only reason for having the virtual saveImpl is so lld can have a
thread safe version.

The reason for the distinct BumpPtrStringSaver class is to avoid the
virtual destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239669 91177308-0d34-0410-b5e6-96231b3b80d8

2015-06-13 12:49:52 +00:00

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