Rollup merge of #58296 - estebank:hidden-suggestion, r=oli-obk

Hidden suggestion support

Add way to hide suggestion snippet window from cli output to avoid cluttered spans that don't enhance understanding.

r? @pietroalbini CC @zackmdavis

diff --cc src/librustc/lint/builtin.rs
Simple merge

diff --cc src/librustc_errors/diagnostic.rs
Simple merge

diff --cc src/librustc_errors/diagnostic_builder.rs
Simple merge

diff --cc src/librustc_errors/emitter.rs
Simple merge

diff --cc src/librustc_errors/lib.rs
Simple merge