[DO NOT MERGE] CI measurement: 20pkg - Set B

[m-nash]

Set B (baseline vs main) for measuring the standalone build/analyze LOC-split change.

• Scale: 20pkg (20 packages touched)
• Base: main
• Purpose: measure CI build/analyze wall-clock and agent-min for a clean A/B against the LOC-split feature only (no other weighted-test-batching changes).

Companion to PR set in the other direction. Do not merge.

[Copilot]

Pull request overview

This PR is a CI measurement change-set (“Set B”) intended to touch 20 packages by introducing trivial, non-functional diffs, enabling A/B timing comparisons for the build/analyze LOC-split experiment.

Changes:

• Appends a // Test comment for batching validation - DO NOT MERGE marker to the end of 20 source files across multiple SDK packages.
• Introduces package-touch churn in both hand-authored and <auto-generated/> sources to force CI to process those packages.

Reviewed changes

Copilot reviewed 16 out of 20 changed files in this pull request and generated 20 comments.

Show a summary per file

File	Description
sdk/storage/Azure.Storage.Blobs/src/AppendBlobClient.cs	Adds a trailing test-only comment at EOF.
sdk/sqlmanagement/Azure.ResourceManager.Sql/src/Custom/ArmSqlModelFactory.cs	Adds a trailing test-only comment at EOF.
sdk/signalr/Azure.Provisioning.SignalR/src/Generated/SignalRBuiltInRole.cs	Adds a trailing comment to an <auto-generated/> file.
sdk/servicebus/Azure.Messaging.ServiceBus/src/Constants.cs	Adds a trailing test-only comment at EOF.
sdk/securitycenter/Azure.ResourceManager.SecurityCenter/src/Custom/SecurityAssessmentData.cs	Adds a trailing test-only comment at EOF.
sdk/search/Azure.Search.Documents/src/AzureSearchDocumentsEventSource.cs	Adds a trailing test-only comment at EOF.
sdk/redis/Azure.Provisioning.Redis/src/Generated/RedisBuiltInRole.cs	Adds a trailing comment to an <auto-generated/> file.
sdk/provisioning/Azure.Provisioning.Deployment/src/AzCliBicepTool.cs	Adds a trailing test-only comment at EOF.
sdk/network/Azure.ResourceManager.Network/src/Customization/ArmNetworkModelFactory.cs	Adds a trailing test-only comment at EOF.
sdk/monitor/Azure.ResourceManager.Monitor/src/Customized/ArmMonitorModelFactory.cs	Adds a trailing test-only comment at EOF.
sdk/kusto/Azure.Provisioning.Kusto/src/Generated/KustoAttachedDatabaseConfiguration.cs	Adds a trailing comment to an <auto-generated/> file.
sdk/keyvault/Azure.Security.KeyVault.Keys/src/CreateEcKeyOptions.cs	Adds a trailing test-only comment at EOF.
sdk/eventhub/Azure.Messaging.EventHubs/src/EventData.cs	Adds a trailing test-only comment at EOF.
sdk/cosmosdb/Azure.ResourceManager.CosmosDB/src/Custom/RestorableCosmosDBAccountResource.cs	Adds a trailing test-only comment at EOF.
sdk/containerregistry/Azure.Provisioning.ContainerRegistry/src/Generated/ConnectedRegistry.cs	Adds a trailing comment to an <auto-generated/> file.
sdk/compute/Azure.ResourceManager.Compute/src/Customize/ArmComputeModelFactory.cs	Adds a trailing test-only comment at EOF.
sdk/communication/Azure.Communication.Email/src/EmailClient.cs	Adds a trailing test-only comment at EOF.
sdk/cdn/Azure.ResourceManager.Cdn/src/Customization/ArmCdnModelFactory.cs	Adds a trailing test-only comment at EOF.
sdk/billing/Azure.ResourceManager.Billing/src/GlobalSuppressions.cs	Adds a trailing test-only comment at EOF.
sdk/apimanagement/Azure.ResourceManager.ApiManagement/src/Customized/ApiManagementProductResource.cs	Adds a trailing test-only comment at EOF.