SuccessChanges

Summary

  1. [clangd] Add a trained DecisionForest for code completion. (details)
Commit b5f7e9e26cd06d034bf68f63de6ae6d37b032b5e by usx
[clangd] Add a trained DecisionForest for code completion.

Replaces the dummy CodeCompletion model with a trained DecisionForest
model.
The features.json needs to be manually curated specifying the features
to be used. This is a one-time cost and does not change if the model
changes until we decide to add/remove features.

Differential Revision: https://reviews.llvm.org/D88071
The file was modifiedclang-tools-extra/clangd/quality/model/features.json
The file was modifiedclang-tools-extra/clangd/quality/model/forest.json