chore: bump swc_core from 52.0.0 to 54.0.0 and swc_experimental from 0.3.5 to 0.4.0

[CPunisher]

Summary

SWC: https://github.com/swc-project/swc/blob/main/CHANGELOG-CORE.md

• Parser/Minifier performance optimization
• Minifier bug fixes

swc-experimental: https://github.com/CPunisher/swc-experimental/releases/tag/v0.4.0

• Performance optimization ported from SWC
• Dedicated optimization

Checklist

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

[netlify]

✅ Deploy Preview for rspack canceled.

Name	Link
🔨 Latest commit	6602bac
🔍 Latest deploy log	https://app.netlify.com/projects/rspack/deploys/695364d21311c0000899d65d

[Copilot]

Pull request overview

This PR bumps SWC core dependencies to leverage recent performance optimizations and bug fixes. The main update is swc_core from 52.0.0 to 54.0.0, with corresponding updates to related packages and the experimental swc packages from 0.3.5 to 0.4.0.

• Updated swc_core and related packages to align with latest stable releases
• Updated swc_experimental packages for performance improvements
• Updated test expectations to reflect minor parser error formatting changes

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
Cargo.toml	Bumped versions for swc (50.0.0 → 52.0.0), swc_core (52.0.0 → 54.0.0), swc_ecma_minifier (40.0.0 → 42.0.0), swc_html_minifier (40.0.0 → 42.0.0), and swc_experimental packages (0.3.5 → 0.4.0)
Cargo.lock	Updated lock file with new package versions, checksums, and transitive dependency updates; removed swc_ecma_compiler dependency
crates/rspack_workspace/src/generated.rs	Updated generated swc_core version constant from "52.0.0" to "54.0.0"
tests/rspack-test/diagnosticsCases/module-build-failed/loader-import-syntax-error/stats.err	Updated test expectation to reflect parser error formatting change (removed caret indicator line)

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[github-actions]

📦 Binary Size-limit

Comparing 6602bac to refactor: refine exports info for CJS and ESM interop (#12577) by harpsealjs

🎉 Size decreased by 166.00KB from 48.00MB to 47.84MB (⬇️0.34%)

[github-actions]

Rsdoctor Bundle Diff Analysis

Found 5 projects in monorepo, 1 project with changes.

📊 Quick Summary

Project	Total Size	Change
react-10k	5.7 MB	0
react-1k	823.4 KB	0
react-5k	2.7 MB	0
rome	984.4 KB	+23.0 B (0.0%)
ui-components	2.1 MB	0

📋 Detailed Reports (Click to expand)

📁 rome

Path: ../build-tools-performance/cases/rome/dist/rsdoctor-data.json

📌 Baseline Commit: 5bf9eccfba | PR: #12580

Metric	Current	Baseline	Change
📊 Total Size	984.4 KB	984.3 KB	+23.0 B (0.0%)
📄 JavaScript	984.4 KB	984.3 KB	+23.0 B (0.0%)
🎨 CSS	0 B	0 B	0
🌐 HTML	0 B	0 B	0
📁 Other Assets	0 B	0 B	0

📦 Download Diff Report: rome Bundle Diff

Generated by Rsdoctor GitHub Action

[codspeed-hq]

CodSpeed Performance Report

Merging #12582 will not alter performance

_{Comparing 12-30-chore/bump-swc (6602bac) with main (5bf9ecc)}

Summary

✅ 16 untouched
⏩ 1 skipped¹

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩