-Zsave-analysis #43606Description
-Z flags are now unstable. However, we plan to use save-analysis info for the RLS and Rustdoc and we want these to work on stable compilers. Therefore, we need a stable flag. Options:
--save-analysis--emit analysisor analysis-info or analysis-data or whatever- Keep the -Z flag and give tools a loophole to use it on stable
I propose that the existence of the flag is stable, but that we make no guarantees about the output when using the flag. We might consider guaranteeing that the output is valid JSON (but that includes {}). We could promise that the shape of the ouput won't change, but I'd rather not.