The Container USR's CXString had its underlying data owned by the CXTranslationUnit's string pool. This
would result in trying to access freed memory.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137887 91177308-0d34-0410-b5e6-96231b3b80d8
but to wrap both an ASTUnit and a "string pool"
that will be used for fast USR generation.
This requires a bunch of mechanical changes, as
there was a ton of code that assumed that CXTranslationUnit
and ASTUnit* were the same.
Along with this change, introduce CXStringBuf,
which provides an llvm::SmallVector<char> backing
for repeatedly generating CXStrings without a huge
amount of malloc() traffic. This requires making
some changes to the representation of CXString
by renaming a few fields (but keeping the size
of the object the same).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119337 91177308-0d34-0410-b5e6-96231b3b80d8