fix(rstest): avoid async wrapper for sync mock factories

[9aoy]

Summary

This PR stops hoisted rs.mock(..., () => ({ ... })) calls from marking rstest entries as async modules, which removed the unnecessary async wrapper from the generated bundle. It also strengthens the rstest mock case to assert the emitted bundle1.js is still hoisted correctly and does not contain async module runtime markers.

Related links

None.

Checklist

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

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

This PR updates the rstest parser behavior to avoid marking hoisted synchronous rs.mock() calls as async modules, and tightens regression coverage by asserting the emitted bundle remains hoisted and free of async-module runtime markers.

Changes:

• Removed logic that marked modules as having top-level await when encountering hoisted rstest mocks.
• Strengthened the rstest mock config case to assert correct hoist ordering and absence of async-module runtime wrappers.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
tests/rspack-test/configCases/rstest/mock/test.js	Expands assertions around hoisting order and verifies no async-module runtime markers are emitted.
crates/rspack_plugin_rstest/src/parser_plugin.rs	Stops hoisted mocks from unconditionally setting async/top-level-await metadata.

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[chatgpt-codex-connector]

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[github-actions]

📦 Binary Size-limit

Comparing 834808f to chore: bump swc_core from 62 to 64 (#13760) by CPunisher

🙈 Size remains the same at 62.81MB

[github-actions]

Rsdoctor Bundle Diff Analysis

Found 6 projects in monorepo, 0 projects with changes.

📊 Quick Summary

Project	Total Size	Change
popular-libs	1.7 MB	0
react-10k	5.7 MB	0
react-1k	826.1 KB	0
react-5k	2.7 MB	0
rome	1.6 MB	0
ui-components	4.8 MB	0

Generated by Rsdoctor GitHub Action

[codspeed-hq]

Merging this PR will not alter performance

✅ 34 untouched benchmarks

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_{Comparing 9aoy/fix-rstest-sync-mock-factory (834808f) with main (86caffb)}

[github-actions]

📝 Rspack Ecosystem CI: Open

suite	result
rsbuild	✅ success
rsdoctor	✅ success
modernjs	✅ success
rspress	✅ success
rstest	✅ success
plugin	✅ success
lynx-stack	❌ failure
examples	✅ success
rsbuild-rsc-plugin	✅ success
devserver	✅ success
rslib	✅ success