Tag build swift-DEVELOPMENT-SNAPSHOT-2017-01-18-a
Merge remote-tracking branch 'origin/swift-3.1-branch' into stable
* origin/swift-3.1-branch:
[sanitizer] rename __sanitizer_symbolize_data to __sanitizer_symbolize_global (to avoid conflict with another definition)
[sanitizer] add __sanitizer_symbolize_data (can only print the names of the globals for now)
[sanitizer] fix a potential buffer overflow due to __sanitizer_symbolize_pc (need to put a zero after strncmp). LOL
[sanitizer] add __sanitizer_symbolize_pc. https://github.com/google/sanitizers/issues/322