Add AliasingSafe framework
#1224
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This commit adds the `pointer::aliasing_safety::AliasingSafe` trait, which is implemented for pointer conversions which do not violate aliasing. This can happen either because the aliasing is exclusive or because neither type contains `UnsafeCell`s. This paves the way for us to remove `Immutable` bounds from some of our API, including from some derives. Makes progress on #251 Co-authored-by: Jack Wrenn <jswrenn@amazon.com>
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This commit adds the
pointer::aliasing_safety::AliasingSafetrait, which is implemented for pointer conversions which do not violate aliasing. This can happen either because the aliasing is exclusive or because neither type containsUnsafeCells.This paves the way for us to remove
Immutablebounds from some of our API, including from some derives.Makes progress on #251