message: Replace displayName as identifier by instance id of visual studio in kit configuration file
diff: @@ -405,7 +405,7 @@ async function tryCreateNewVCEnvironment(inst: VSInstallation, arch: string, pr?
  const kit: VSKit = {
  type : 'vsKit',
  name : name,
  - visualStudio : installName,
  + visualStudio : inst.instanceId,
  visualStudioArchitecture : arch,
  };
  @@ -444,7 +444,7 @@ export async function scanForVSKits(pr?: ProgressReporter):
  export async function getVSKitEnvironment(kit: VSKit):
  Promise<Map<string, string>| null> {
  const installs = await vsInstallations();
  - const requested = installs.find(inst => inst.displayName == kit.visualStudio);
  + const requested = installs.find(inst => inst.instanceId == kit.visualStudio);
  if (!requested) {
  return null;
  }
  