src/vs/workbench/api/common/extHostConfiguration.ts/ExtHostConfigProvider/_toMap
class ExtHostConfigProvider:	private _toMap(scopes: [string, ConfigurationScope | undefined][]): Map<string, ConfigurationScope | undefined> {
		return scopes.reduce((result, scope) => { result.set(scope[0], scope[1]); return result; }, new Map<string, ConfigurationScope | undefined>());
	}