handlePluginVersionCheck method
      
Future<PluginVersionCheckResult> 
handlePluginVersionCheck(
    
- PluginVersionCheckParams parameters
inherited
    Handle a 'plugin.versionCheck' request.
Throw a RequestFailure if the request could not be handled.
Implementation
Future<PluginVersionCheckResult> handlePluginVersionCheck(
    PluginVersionCheckParams parameters) async {
  _sdkPath = parameters.sdkPath;
  var versionString = parameters.version;
  var serverVersion = Version.parse(versionString);
  return PluginVersionCheckResult(
      isCompatibleWith(serverVersion), name, version, fileGlobsToAnalyze,
      contactInfo: contactInfo);
}