src/vs/workbench/api/common/extHostLoggerService.ts/ExtHostLoggerService/$setLevel
class ExtHostLoggerService:	$setLevel(level: LogLevel, resource?: UriComponents): void {
		if (resource) {
			this.setLevel(URI.revive(resource), level);
		} else if (!isUndefined(level)) {
			this.setLevel(level);
		}
	}