f70f19fef4
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`
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.