Move DynRegionInfo out of the ELFDumper.

This reduces indentation in preparation to adding a bit more code to it.

Extracted from r260488.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260963 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed