History of ReferenceIndex::indexOf 1 change

In src/references.ts, lines 54–81 on d41ae0fdfae623c04945dbe53387b87241fd598741f1e766e3c32b0640134bb5. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 54,81:src/references.ts.