Tracking issue for Q1 2021 small features release.

[leafpetersen]

This meta-issue tracks the Q1 2021 small features release

• Implementation plan
• Feature specification

This consists of three sub-features, as described in the feature specification:

• Type arguments on annotations: Allow generic metadata annotations language#1297
• Generic function types as type arguments Allow generic function types as type arguments and bounds language#496
• >>> (triple-shift) as an overridable operator Triple-shift operator language#120)

Implementation issues

• Issue for core library implementation: Implement Q1 2020 Small features release in the core libraries #44912
• Issue for implementation in dart2js: Implement Q1 2021 Small features release in dart2js #44913
• Issue for implementation in the VM: Implement the Q1 2021 small features release in the VM/AOT #44914
• Issue for implementation in DDC: Implement the Q1 2021 small features release in DDC #44915
• Issue for implementation in CFE: Implement the Q1 2021 small features release in the CFE #44916
• Issue for implementation in Analyzer: Implement the Q1 2021 small features release in the Analyzer #44917
• Issue for implementation in IntelliJ: Implement the Q1 2021 small features release in IntelliJ #44918
• Issue for external syntax highlighting support: Implement the Q1 2021 small features release in external syntax highlighting tools. #44919
• Issue for internal tooling support: Implement the Q1 2021 small features release in internal tools. #44920
• Issue for implementation in Dartfmt: 44921
• Issue for implementation in Dartdoc: Implement the Q1 2021 small features release in dartdoc. #44922
• Issue for implementation in build systems and Angular compiler: Implement the Q1 2021 small features release in AngularDart #44923
• Issue for VM Service support: Implement the Q1 2021 small features release in the VM service #44924
• Issue for web debugging support: Implement the Q1 2021 small features release in the web debuggers #44925
• Issue for language tests: Language tests for the Q1 2021 small features release. #44926
• Issue for documentation: Update documentation for the Q1 2021 small features release. #44927

[athomas]

@sgrekhov please add links to relevant co19 issues here.

[franklinyow]

Implementation completed