Update src/borrow_check/region_inference/member_constraints.md

Co-Authored-By: Who? Me?! <mark-i-m@users.noreply.github.com>
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Niko Matsakis 2019-06-24 14:36:59 -04:00 committed by Who? Me?!
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@ -69,7 +69,7 @@ interesting to the point we are illustrating here).
The `'a: '0` and `'b: '1` constraints arise from subtyping. When we
construct the `(a, b)` value, it will be assigned type `(&'0 u32, &'1
u32)` -- the region variables reflect that the lifetime of this
u32)` -- the region variables reflect that the lifetimes of these
references could be made smaller. For this value to be created from
`a` and `b`, however, we do require that: