src/vs/workbench/contrib/comments/browser/commentGlyphWidget.ts/CommentGlyphWidget/getPosition
class CommentGlyphWidget:	getPosition(): IContentWidgetPosition {
		const range = this._editor.hasModel() && this.commentsDecorations && this.commentsDecorations.length
			? this._editor.getModel().getDecorationRange(this.commentsDecorations[0])
			: null;

		return {
			position: {
				lineNumber: range ? range.startLineNumber : this._lineNumber,
				column: 1
			},
			preference: [ContentWidgetPositionPreference.EXACT]
		};
	}