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59a9ea3f96
Seq.emplace_back(Seq.back()); does not work as planned, since Seq.back() may become a dangling reference when emplace_back is called and possibly reallocates vector. To avoid this, the vector allocation should be reserved first and only then used. This broke test/tools/dsymutil/X86/custom-line-table.test with Visual C++ 2013. llvm-svn: 244405