v3.1.2

Changelog

42896a8 Bump golang.org/x/sys from 0.0.0-20210510120138-977fb7262007 to 0.1.0
23b6acb Fixed makefile
3c94f9e Merge pull request #68 from gojuno/dependabot/go_modules/golang.org/x/sys-0.1.0
228ba65 Merge pull request #70 from defaulterrr/composite-generics
833f15e Removed clean target
ad7b506 feat: added automatic snapshot testing
548317b feat: added support for composite generics
d00a43e fix: use go/printer to render nodes instead of manual traversal