[main] Source code updates from microsoft/vstest

[dotnet-maestro]

Note

This is a codeflow update. It may contain both source code changes from
the source repo
as well as dependency updates. Learn more here.

This pull request brings the following source code changes

From https://github.com/microsoft/vstest

• Subscription: 84ebe7b4-0137-45d1-b2f4-bf71d8952e37
• Build: 20260629.8 (320725)
• Date Produced: June 29, 2026 4:51:57 PM UTC
• Commit: e683cdc0fa08b191c99cb8ab264295db837f2b6d
• Commit Diff: 9f3151a...e683cdc
• Branch: main

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/microsoft/vstest:e683cdc0fa08b191c99cb8ab264295db837f2b6d..https://github.com/dotnet/dotnet:darc-main-fc745572-eace-4d04-8891-9148f05bda97

[dotnet-maestro]

Note

PRs from original repository included in this codeflow update:

• Remove auto-approve for maestro PRs microsoft/vstest#16188
• [main] Source code updates from dotnet/dotnet microsoft/vstest#16185
• [main] Update dependencies from dotnet/arcade microsoft/vstest#16183
• [main] Update dependencies from devdiv/DevDiv/vs-code-coverage microsoft/vstest#16184
• Branding as 18.10.0 microsoft/vstest#16189
• Remove Windows-Review from cross-platform tests microsoft/vstest#16113
• Drop Mono fallback, run .NET Framework tests on Windows only microsoft/vstest#16158
• [code-simplifier] refactor: use switch expression for TargetInvocationException unwrap in BaseRunTests microsoft/vstest#16181
• [efficiency-improver] perf: short-circuit FilterExpression.Evaluate for single-condition leaf nodes microsoft/vstest#16182
• [efficiency-improver] perf: avoid string[1] allocation in Condition.Evaluate for single-string properties microsoft/vstest#16179

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

This pull request only contains source updates from https://github.com/microsoft/vstest between commits 9f3151a06cf9d1fbf36935698df7e9cb5d2f1e90 and e683cdc0fa08b191c99cb8ab264295db837f2b6d.