src/vs/platform/configuration/common/configurationModels.ts/ConfigurationModel/getOverrideValue
class ConfigurationModel:	getOverrideValue<V>(section: string | undefined, overrideIdentifier: string): V | undefined {
		const overrideContents = this.getContentsForOverrideIdentifer(overrideIdentifier);
		return overrideContents
			? section ? getConfigurationValue<any>(overrideContents, section) : overrideContents
			: undefined;
	}