v15.0.4-canary.38

Core Changes

• Ensure Issue Overlay sourcemaps externals in Turbopack: #73439

Misc Changes

• prevent accidentally re-creating ResolvedVc via deref by using a deprecated fn: #73428
• refactor(turbopack): Disable tree shaking by default: #73421
• [Turbopack] fix race condition in database compaction: #73495
• fix unnecessary to_resolved calls in test cases: #73501

Credits

Huge thanks to @arlyon, @kdy1, @sokra, and @eps1lon for helping!