Zachary Turner 4ca9432def Fix crash in clang. ...

This happened during a recent refactor.  toStringRefArray() returns
a vector<StringRef>, which was being implicitly converted to an
ArrayRef<StringRef>, and then the vector was immediately being
destroyed, so the ArrayRef<> was losing its backing storage.
Fix this by making sure the vector gets permanent storage.

llvm-svn: 336219

2018-07-03 18:12:39 +00:00

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