carbon-language/carbon-lang v0.0.0-0.nightly.2025.10.03

Nightly build 2025.10.03

on GitHub

What's Changed

Toolchain and implementation changes 🛠️

• Add tests for returning a C++ reference type, rvalue and const reference by @bricknerb in #6149
• Fix a crash caused by a bug introduced in C++ overloads support in GetScopeIdOffset() by @bricknerb in #6151
• Fix C++ thunk triggering for functions with default args which return a simple type by @bricknerb in #6152
• Find the builtin TypeCanAggregateDestroy in the FacetType for facet values by @danakj in #6119
• Avoid extra work when thunk_required is already true in IsCppThunkRequired() by @bricknerb in #6150
• Check for use of InstIds from the wrong SemIR::File by @dwblaikie in #5997

Full Changelog: v0.0.0-0.nightly.2025.10.02...v0.0.0-0.nightly.2025.10.03