message: Prepare 1.2.0 release.
diff: @@ -4,7 +4,9 @@ All notable changes to this project will be documented in this file.
  The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
  and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
  -## [Unreleased]
  +<!-- ## [Unreleased] -->
  +
  +## [1.2.0] - 2018-02-14
  - Functions which definitely never return a value will now be automatically inferred as returning `void`.
  - Getters on Polymer elements defined with the legacy Polymer function are now scanned correctly (previously type annotations were missing, and the readonly bit was inverted.
  