Builtins: add path & unsafeDiscardOutputDependency#1032

Anton-Latukha merged 3 commits intohaskell-nix:masterhaskell-nix/hnix:masterfrom

Anton-Latukha:2022-01-18-add-builtins.unsafeDiscardOutputDependencyAnton-Latukha/hnix:2022-01-18-add-builtins.unsafeDiscardOutputDependencyCopy head branch name to clipboard