libclang - Bug 20320 - clang_reparseTranslationUnit crashes while serializing the AST

Hi!

There is a critical and easily reproducible bug:

   clang_reparseTranslationUnit crashes while serializing the AST
   https://llvm.org/bugs/show_bug.cgi?id=20320

It would be nice if this one could be addressed for 3.8.1.

Nikolai