Makefile: Make crate tests depend on their extern crates#8202

pnkfelix wants to merge 1 commit intorust-lang:masterrust-lang/rust:masterfrom

pnkfelix:fsk-issue8056-make-crates-must-dep-on-subcratespnkfelix/rust:fsk-issue8056-make-crates-must-dep-on-subcratesCopy head branch name to clipboard