Improve codegen diagnostic handling Clarify the workings of the temporary `Diagnostic` type used to send diagnostics from codegen threads to the main thread. r? `@estebank`
abi_amdgpu_kernel
clippy::needless_borrow
Session
DiagCtxt
-Zdefault-hidden-visibility
rustc
Diagnostic
CodegenBackend::join_codegen
-Z direct-access-external-data