feat(lto): add global DCE phase-1 support for interface dispatch#1752

zhouguangyuan0718 wants to merge 2 commits intogoplus:maingoplus/llgo:mainfrom

zhouguangyuan0718:main-lto-dce-reflect-19zhouguangyuan0718/llgo:main-lto-dce-reflect-19Copy head branch name to clipboard