https://clang.llvm.org/docs/LibTooling.html

http://qaru.site/questions/414249/how-to-use-standard-library-with-clang-and-libtooling

Pact - Getting Started with LLVM Core Libraries
https://www.packtpub.com/mapt/book/application_development/9781782166924/10

https://github.com/kevinaboos/LibToolingExample
https://github.com/facebook/facebook-clang-plugins/tree/master/libtooling

2018
Bennett - Refactoring Legacy Codebases with LibTooling
    https://www.youtube.com/watch?v=tUBUqJSGr54