Untangle ZST validation from integer validation and generalize it to all zsts#68219

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bors merged 2 commits intorust-lang:masterfrom

oli-obk:fix_miri

Jan 15, 2020

Commits on Jan 14, 2020

Untangle ZST validation from integer validation and generalize it to all zsts
oli-obk
committed

Commits on Jan 15, 2020

Add tests
oli-obk
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