Tolerate null elements / annotations / annotation values

in TurbineMessager, for parity with javac (which allows the 'position hints' to
be null).

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=262242387
1 file changed
tree: c1de7c069efa032f9bdc50e4eb2e9b0d48b52ec9
  1. java/
  2. javatests/
  3. proto/
  4. .gitignore
  5. .travis.yml
  6. appveyor.yml
  7. LICENSE
  8. pom.xml
  9. README.md
README.md

Turbine

Turbine is a header compiler for Java.