src/vs/workbench/contrib/preferences/browser/preferencesRenderers.ts/EditSettingRenderer/marginFreeFromOtherDecorations
class EditSettingRenderer:	private marginFreeFromOtherDecorations(line: number): boolean {
		const decorations = this.editor.getLineDecorations(line);
		if (decorations) {
			for (const { options } of decorations) {
				if (options.glyphMarginClassName && options.glyphMarginClassName.indexOf(ThemeIcon.asClassName(settingsEditIcon)) === -1) {
					return false;
				}
			}
		}
		return true;
	}