SuccessChanges

Summary

  1. Fix warning about unused std::unique result, erase shifted elements (details)
Commit dd870f6929ee0b1dfb5fd000c7b826a1bd2d2571 by rnk
Fix warning about unused std::unique result, erase shifted elements
This is actually a functional change. I haven't added any new test
coverage. I'm just trying to fix the warning and hoping for the best.
The file was modifiedclang/include/clang/Serialization/ContinuousRangeMap.h