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RangeMap.h: merge RangeDataArray and RangeDataVector

Description

RangeMap.h: merge RangeDataArray and RangeDataVector

Summary:
The main difference between the classes was supposed to be the fact that
one is backed by llvm::SmallVector, and the other by std::vector.
However, over the years, they have accumulated various other differences
too.

This essentially removes the std::vector version, as that is pretty much
identical to llvm::SmallVector<T, 0>, and combines their interfaces. It
does not attempt to do a more significant refactoring, even though there
is still a lot of duplication in this file, as it is hard to tell which
quirk of some API is depended on by somebody (and, a previous, more
ambitious attempt at this in D16769 has failed).

I also add some tests, including one which demonstrates one of the
quirks/bugs of the API I have noticed in the process.

Reviewers: clayborg, teemperor, tberghammer

Subscribers: mgorny, JDevlieghere, lldb-commits

Differential Revision: https://reviews.llvm.org/D56170

Details

Committed
labathThu, Jan 3, 11:14 PM
Differential Revision
D56170: RangeMap.h: merge RangeDataArray and RangeDataVector
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