fix: panic when factorize failed in module executor

[LingyuCoder]

Summary

fix #9931

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[Copilot]

Pull Request Overview

This PR addresses the panic issue during module factorization by handling diagnostics in the module executor.

• Prevents panic by checking for diagnostics and returning early from the execute task.
• Adds tests in rspack-test-tools to verify that module imports no longer panic.

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/rspack.config.js	New test configuration to support the import-module test case
packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/render.js	Minimal export to support test execution
packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/index.js	Test case ensuring that module import does not panic
packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/import-module-example-loader.js	Loader that passes through content
packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/example-loader.js	Loader that attempts to import a non-existent module and handles the resulting error
crates/rspack_core/src/compiler/module_executor/execute.rs	Updated executor to report diagnostics without panicking

Files not reviewed (1)

• packages/rspack-test-tools/tests/diagnosticsCases/factorize/import-module/stats.err: Language not supported

Comments suppressed due to low confidence (1)

crates/rspack_core/src/compiler/module_executor/execute.rs:82

• Ensure that the join method is imported (e.g. from the itertools crate) or use an alternative approach (such as collecting into a Vec and then joining) since join is not part of the standard Iterator trait.

error: Some(diagnostics.iter().map(|d| d.to_string()).join("\n")),

[netlify]

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[codspeed-hq]

CodSpeed Performance Report

Merging #10136 will not alter performance

_{Comparing fix/module-executor-failed (71a54b3) with main (90ba7cb)}

Summary

✅ 11 untouched benchmarks