- get rid of unneeded constructors
- get rid of duplicate methods/constructors/operators
- normalize to LLVM coding standards
- wrap to 80 columns.
Many thanks to Alkis Evlogimenos for his suggestions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16514 91177308-0d34-0410-b5e6-96231b3b80d8