Implementation of a scip indexer for dart

Designed to be a replacement for lsif_indexer, with better coverage and reliability

dart pub global activate scip_dart

The following command will output a index.scip file

cd ./path/to/project/root
dart pub get
dart pub global run scip_dart ./

This file can be analyzed / displayed using the scip cli

scip print ./index.scip
scip snapshot

Analysis can be uploaded to sourcegraph using the src cli

src code-intl upload -file=index.scip -github-token="<your gh token>"