src/vs/editor/common/model/bracketPairsTextModelPart/bracketPairsTree/bracketPairsTree.ts/BracketPairsTree/handleDidChangeTokens
class BracketPairsTree:	public handleDidChangeTokens({ ranges }: IModelTokensChangedEvent): void {
		const edits = ranges.map(r =>
			new TextEditInfo(
				toLength(r.fromLineNumber - 1, 0),
				toLength(r.toLineNumber, 0),
				toLength(r.toLineNumber - r.fromLineNumber + 1, 0)
			)
		);

		this.handleEdits(edits, true);

		if (!this.initialAstWithoutTokens) {
			this.didChangeEmitter.fire();
		}
	}